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DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003716 | image | question_images/parts_leaf_3149.png | parts_leaf_3149.png | 1 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003635 | image | question_images/parts_leaf_1124.png | parts_leaf_1124.png | 0.949162 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003365 | image | abc_question_images/parts_leaf_13149.png | parts_leaf_13149.png | 0.885149 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003559 | image | question_images/parts_leaf_1105.png | parts_leaf_1105.png | 0.8626 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003658 | image | question_images/parts_leaf_3131.png | parts_leaf_3131.png | 0.799291 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.790033 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003554 | image | question_images/parts_leaf_1096.png | parts_leaf_1096.png | 0.786041 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.784325 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DD_0110 | image | teaching_images/parts_leaf_557.png | This diagram shows the parts of a leaf. The Blade is the broad flat part of the leaf. The Petiole is the stemlike part of the leaf that joins the blade to the stem. The Stipules are two small flaps that grow at the base of the petiole of some plants. A leaf has several veins. Veins carry food and water in a leaf. They also support the blade. The large central vein which extends from the base of the blade to its tip is called the Midrib. Smaller veins connect the midrib to other parts of the blade. | 0.782703 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | DQ_003353 | image | abc_question_images/parts_leaf_13131.png | parts_leaf_13131.png | 0.782205 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_3385 | text | null | Plants seem to grow wherever they can. How? Plants cant move on their own. So how does a plant start growing in a new area? | 0.505324 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_1698 | text | null | How well soil forms and what type of soil forms depends on several different factors, which are described below. | 0.502975 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_1598 | text | null | Plants and animals depend on water to live. They also play a role in the water cycle. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves (Figure 1.3), a process known as transpiration. | 0.499421 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_3434 | text | null | Water also moves through the living organisms in an ecosystem. Plants soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called transpiration. The process of transpiration, like evaporation, returns water back into the atmosphere. | 0.479888 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_1805 | text | null | Some fossils form when their remains are compressed by high pressure, leaving behind a dark imprint. Compression is most common for fossils of leaves and ferns, but can occur with other organisms. Click image to the left or use the URL below. URL: Click image to the left or use the URL below. URL: | 0.479677 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_1950 | text | null | The most basic division of modern plants is between nonvascular and vascular plants. Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce naked seeds in cones and those that produce seeds in the ovaries of flowers. | 0.475148 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_2956 | text | null | Scientists used to think that fungi were members of the plant kingdom. They thought this because fungi had several similarities to plants. For example: Fungi and plants have similar structures. Plants and fungi live in the same kinds of habitats, such as growing in soil. Plants and fungi cells both have a cell wall, which animals do not have. | 0.4726 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_1797 | text | null | The two types of air pollutants are primary pollutants, which enter the atmosphere directly, and secondary pollutants, which form from a chemical reaction. | 0.467821 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_4322 | text | null | Distance is the length of the route between two points. The distance of a race, for example, is the length of the track between the starting and finishing lines. In a 100-meter sprint, that distance is 100 meters. | 0.467273 |
DQ_003720 | What is the border of the leaf called? | question_images/parts_leaf_3149.png | a. blade, b. petiole, c. margin, d. primary vein | c | T_0987 | text | null | Now that you know what chemical weathering is, can you think of some other ways chemical weathering might occur? Chemical weathering can also be contributed to by plants and animals. As plant roots take in soluble ions as nutrients, certain elements are exchanged. Plant roots and bacterial decay use carbon dioxide in the process of respiration. | 0.466537 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003716 | image | question_images/parts_leaf_3149.png | parts_leaf_3149.png | 1 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003635 | image | question_images/parts_leaf_1124.png | parts_leaf_1124.png | 0.949162 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003365 | image | abc_question_images/parts_leaf_13149.png | parts_leaf_13149.png | 0.885149 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003559 | image | question_images/parts_leaf_1105.png | parts_leaf_1105.png | 0.8626 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003658 | image | question_images/parts_leaf_3131.png | parts_leaf_3131.png | 0.799291 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.790033 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003554 | image | question_images/parts_leaf_1096.png | parts_leaf_1096.png | 0.786041 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.784325 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DD_0110 | image | teaching_images/parts_leaf_557.png | This diagram shows the parts of a leaf. The Blade is the broad flat part of the leaf. The Petiole is the stemlike part of the leaf that joins the blade to the stem. The Stipules are two small flaps that grow at the base of the petiole of some plants. A leaf has several veins. Veins carry food and water in a leaf. They also support the blade. The large central vein which extends from the base of the blade to its tip is called the Midrib. Smaller veins connect the midrib to other parts of the blade. | 0.782703 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | DQ_003353 | image | abc_question_images/parts_leaf_13131.png | parts_leaf_13131.png | 0.782205 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_1598 | text | null | Plants and animals depend on water to live. They also play a role in the water cycle. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves (Figure 1.3), a process known as transpiration. | 0.612081 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_3385 | text | null | Plants seem to grow wherever they can. How? Plants cant move on their own. So how does a plant start growing in a new area? | 0.605681 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_3434 | text | null | Water also moves through the living organisms in an ecosystem. Plants soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called transpiration. The process of transpiration, like evaporation, returns water back into the atmosphere. | 0.601109 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_3234 | text | null | Your heart pumps blood around your body. But how does your heart get blood to and from every cell in your body? Your heart is connected to blood vessels such as veins and arteries. Organs that work together form an organ system. Together, your heart, blood, and blood vessels form your cardiovascular system. What other organ systems can you think of? | 0.590091 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_3770 | text | null | Why does a tree make sound when it crashes to the ground? How does the sound reach peoples ears if they happen to be in the forest? And in general, how do sounds get started, and how do they travel? Keep reading to find out. | 0.587182 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_2956 | text | null | Scientists used to think that fungi were members of the plant kingdom. They thought this because fungi had several similarities to plants. For example: Fungi and plants have similar structures. Plants and fungi live in the same kinds of habitats, such as growing in soil. Plants and fungi cells both have a cell wall, which animals do not have. | 0.580905 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_1312 | text | null | In photosynthesis, plants use CO2 and create O2 . Photosynthesis is responsible for nearly all of the oxygen currently found in the atmosphere. The chemical reaction for photosynthesis is: 6CO2 + 6H2 O + solar energy C6 H12 O6 (sugar) + 6O2 | 0.578457 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_1950 | text | null | The most basic division of modern plants is between nonvascular and vascular plants. Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce naked seeds in cones and those that produce seeds in the ovaries of flowers. | 0.572626 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_4844 | text | null | An electric circuit consists of at least one closed loop through which electric current can flow. Every circuit has a voltage source such as a battery and a conductor such as metal wire. A circuit may have other parts as well, such as lights and switches. In addition, a circuit may consist of one loop or two loops. | 0.562368 |
DQ_003721 | What is the part that connects a leaf to a branch? | question_images/parts_leaf_3149.png | a. secondary vein, b. primary vein, c. blade, d. petiole | d | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.556852 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003722 | image | question_images/parts_leaf_3840.png | parts_leaf_3840.png | 1 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DD_0110 | image | teaching_images/parts_leaf_557.png | This diagram shows the parts of a leaf. The Blade is the broad flat part of the leaf. The Petiole is the stemlike part of the leaf that joins the blade to the stem. The Stipules are two small flaps that grow at the base of the petiole of some plants. A leaf has several veins. Veins carry food and water in a leaf. They also support the blade. The large central vein which extends from the base of the blade to its tip is called the Midrib. Smaller veins connect the midrib to other parts of the blade. | 0.769989 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003569 | image | question_images/parts_leaf_1111.png | parts_leaf_1111.png | 0.75936 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003746 | image | question_images/parts_leaf_3859.png | parts_leaf_3859.png | 0.724274 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.721151 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.717713 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003369 | image | abc_question_images/parts_leaf_13844.png | parts_leaf_13844.png | 0.714539 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.706156 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003534 | image | question_images/parts_leaf_1090.png | parts_leaf_1090.png | 0.699341 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | DQ_003353 | image | abc_question_images/parts_leaf_13131.png | parts_leaf_13131.png | 0.690584 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_3385 | text | null | Plants seem to grow wherever they can. How? Plants cant move on their own. So how does a plant start growing in a new area? | 0.609058 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_0777 | text | null | Plates move apart at divergent plate boundaries. This can occur in the oceans or on land. | 0.605028 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_1598 | text | null | Plants and animals depend on water to live. They also play a role in the water cycle. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves (Figure 1.3), a process known as transpiration. | 0.591379 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_2417 | text | null | Secondary succession occurs in a formerly inhabited area that was disturbed. | 0.581724 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_3434 | text | null | Water also moves through the living organisms in an ecosystem. Plants soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called transpiration. The process of transpiration, like evaporation, returns water back into the atmosphere. | 0.557327 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_2385 | text | null | Two important concepts associated with the ecosystem are niche and habitat. | 0.553396 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_2508 | text | null | Cellular respiration and photosynthesis are like two sides of the same coin. This is clear from the diagram in Figure needed for photosynthesis. Together, the two processes store and release energy in virtually all living things. | 0.551632 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_1950 | text | null | The most basic division of modern plants is between nonvascular and vascular plants. Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce naked seeds in cones and those that produce seeds in the ovaries of flowers. | 0.547505 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_1184 | text | null | The flow of matter in an ecosystem is not like energy flow. Matter enters an ecosystem at any level and leaves at any level. Matter cycles freely between trophic levels and between the ecosystem and the physical environment (Figure | 0.543786 |
DQ_003722 | From the diagram, what refers to the boundary area extending along the edge of the leaf? | question_images/parts_leaf_3840.png | a. stalk, b. midrib, c. leaf margin, d. blade | c | T_4999 | text | null | Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation: Speed = Distance Time | 0.543259 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003722 | image | question_images/parts_leaf_3840.png | parts_leaf_3840.png | 1 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DD_0110 | image | teaching_images/parts_leaf_557.png | This diagram shows the parts of a leaf. The Blade is the broad flat part of the leaf. The Petiole is the stemlike part of the leaf that joins the blade to the stem. The Stipules are two small flaps that grow at the base of the petiole of some plants. A leaf has several veins. Veins carry food and water in a leaf. They also support the blade. The large central vein which extends from the base of the blade to its tip is called the Midrib. Smaller veins connect the midrib to other parts of the blade. | 0.769989 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003569 | image | question_images/parts_leaf_1111.png | parts_leaf_1111.png | 0.75936 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003746 | image | question_images/parts_leaf_3859.png | parts_leaf_3859.png | 0.724274 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.721151 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.717713 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003369 | image | abc_question_images/parts_leaf_13844.png | parts_leaf_13844.png | 0.714539 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.706156 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003534 | image | question_images/parts_leaf_1090.png | parts_leaf_1090.png | 0.699341 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | DQ_003353 | image | abc_question_images/parts_leaf_13131.png | parts_leaf_13131.png | 0.690584 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_4844 | text | null | An electric circuit consists of at least one closed loop through which electric current can flow. Every circuit has a voltage source such as a battery and a conductor such as metal wire. A circuit may have other parts as well, such as lights and switches. In addition, a circuit may consist of one loop or two loops. | 0.534411 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_4536 | text | null | Most cars have at least four cylinders connected to the crankshaft. Their pistons move up and down in sequence, one after the other. A powerful car may have eight pistons, and some race cars may have even more. The more cylinders a car engine has, the more powerful its engine can be. | 0.520024 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_1800 | text | null | Most fossils are preserved by one of five processes outlined below (Figure 1.1): | 0.501272 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_2237 | text | null | All known matter can be divided into a little more than 100 different substances called elements. | 0.494941 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_2459 | text | null | Besides the four parts listed above, many cells also have a nucleus. The nucleus of a cell is a structure enclosed by a membrane that contains most of the cells DNA. Cells are classified in two major groups based on whether or not they have a nucleus. The two groups are prokaryotic cells and eukaryotic cells. | 0.49187 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_4814 | text | null | Graphs are very useful tools in science. They can help you visualize a set of data. With a graph, you can actually see what all the numbers in a data table mean. Three commonly used types of graphs are bar graphs, circle graphs, and line graphs. Each type of graph is suitable for showing a different type of data. | 0.490912 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_4091 | text | null | Proteins are the most common biochemicals. They have many different functions, including: making up tissues as components of muscle. speeding up biochemical reactions as enzymes. regulating life processes as hormones. helping defend against infections as antibodies. transporting materials as components of the blood (see the example in Figure 9.20). | 0.489196 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_1698 | text | null | How well soil forms and what type of soil forms depends on several different factors, which are described below. | 0.48895 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_4535 | text | null | In a car, the piston in the engine is connected by the piston rod to the crankshaft. The crankshaft rotates when the piston moves up and down. The crankshaft, in turn, is connected to the driveshaft. When the crankshaft rotates, so does the driveshaft. The rotating driveshaft turns the wheels of the car. | 0.488388 |
DQ_003723 | How many parts is indicated in the diagram? | question_images/parts_leaf_3840.png | a. 3, b. 5, c. 6, d. 4 | a | T_1447 | text | null | Minerals are divided into groups based on chemical composition. Most minerals fit into one of eight mineral groups. | 0.486592 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_004407 | image | question_images/types_leaves_6319.png | types_leaves_6319.png | 1 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003724 | image | question_images/parts_leaf_3842.png | parts_leaf_3842.png | 1 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.834974 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003573 | image | question_images/parts_leaf_1112.png | parts_leaf_1112.png | 0.819271 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003647 | image | question_images/parts_leaf_3106.png | parts_leaf_3106.png | 0.79661 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.787178 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DD_0110 | image | teaching_images/parts_leaf_557.png | This diagram shows the parts of a leaf. The Blade is the broad flat part of the leaf. The Petiole is the stemlike part of the leaf that joins the blade to the stem. The Stipules are two small flaps that grow at the base of the petiole of some plants. A leaf has several veins. Veins carry food and water in a leaf. They also support the blade. The large central vein which extends from the base of the blade to its tip is called the Midrib. Smaller veins connect the midrib to other parts of the blade. | 0.786851 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 0.783682 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_003751 | image | question_images/parts_leaf_3860.png | parts_leaf_3860.png | 0.782274 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | DQ_004403 | image | question_images/types_leaves_6318.png | types_leaves_6318.png | 0.781383 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_3385 | text | null | Plants seem to grow wherever they can. How? Plants cant move on their own. So how does a plant start growing in a new area? | 0.653344 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_1598 | text | null | Plants and animals depend on water to live. They also play a role in the water cycle. Plants take up water from the soil and release large amounts of water vapor into the air through their leaves (Figure 1.3), a process known as transpiration. | 0.649649 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_3434 | text | null | Water also moves through the living organisms in an ecosystem. Plants soak up large amounts of water through their roots. The water then moves up the plant and evaporates from the leaves in a process called transpiration. The process of transpiration, like evaporation, returns water back into the atmosphere. | 0.644639 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_3234 | text | null | Your heart pumps blood around your body. But how does your heart get blood to and from every cell in your body? Your heart is connected to blood vessels such as veins and arteries. Organs that work together form an organ system. Together, your heart, blood, and blood vessels form your cardiovascular system. What other organ systems can you think of? | 0.635101 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_2956 | text | null | Scientists used to think that fungi were members of the plant kingdom. They thought this because fungi had several similarities to plants. For example: Fungi and plants have similar structures. Plants and fungi live in the same kinds of habitats, such as growing in soil. Plants and fungi cells both have a cell wall, which animals do not have. | 0.633798 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_1950 | text | null | The most basic division of modern plants is between nonvascular and vascular plants. Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce naked seeds in cones and those that produce seeds in the ovaries of flowers. | 0.624048 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_1312 | text | null | In photosynthesis, plants use CO2 and create O2 . Photosynthesis is responsible for nearly all of the oxygen currently found in the atmosphere. The chemical reaction for photosynthesis is: 6CO2 + 6H2 O + solar energy C6 H12 O6 (sugar) + 6O2 | 0.620145 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.616868 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_0638 | text | null | To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of. | 0.608761 |
DQ_003724 | What is the part that connects a leaf to a stem? | question_images/parts_leaf_3842.png | a. petiole, b. margin, c. blade, d. midrib | a | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.605506 |
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