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DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 1 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003525 | image | question_images/parts_leaf_1087.png | parts_leaf_1087.png | 0.966354 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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. | 0.845825 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.832669 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003588 | image | question_images/parts_leaf_1115.png | parts_leaf_1115.png | 0.828277 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003608 | image | question_images/parts_leaf_1119.png | parts_leaf_1119.png | 0.826973 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.816441 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.805252 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003538 | image | question_images/parts_leaf_1091.png | parts_leaf_1091.png | 0.794255 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.791624 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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. | 0.632892 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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? | 0.623015 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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. | 0.605191 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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. | 0.595433 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.59096 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | T_1698 | text | null | How well soil forms and what type of soil forms depends on several different factors, which are described below. | 0.578112 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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? | 0.576748 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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. | 0.576486 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | 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 | 0.576133 |
DQ_003665 | What is the broad, flat part of a leaf? | question_images/parts_leaf_3132.png | a. Midrib, b. Blade, c. Node, d. Vein | b | T_0777 | text | null | Plates move apart at divergent plate boundaries. This can occur in the oceans or on land. | 0.56611 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 1 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003525 | image | question_images/parts_leaf_1087.png | parts_leaf_1087.png | 0.966354 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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. | 0.845825 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.832669 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003588 | image | question_images/parts_leaf_1115.png | parts_leaf_1115.png | 0.828277 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003608 | image | question_images/parts_leaf_1119.png | parts_leaf_1119.png | 0.826973 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.816441 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.805252 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003538 | image | question_images/parts_leaf_1091.png | parts_leaf_1091.png | 0.794255 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.791624 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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? | 0.543552 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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. | 0.513425 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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. | 0.498161 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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. | 0.481326 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | T_2971 | text | null | Gymnosperms have seeds, but they do not produce fruit. Instead, the seeds of gymnosperms are usually found in cones. There are four phyla of gymnosperms: 1. Conifers 2. Cycads 3. Ginkgoes 4. Gnetophytes | 0.47276 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | T_3260 | text | null | Why do leaves change color each fall? This MIT video demonstrates an experiment about the different pigments in leaves. See the video at . Click image to the left or use the URL below. URL: | 0.469764 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | T_4854 | text | null | Examples of machines that increase the distance over which force is applied are leaf rakes and hammers (see Figure which the force is applied, but it reduces the strength of the force. | 0.468245 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | T_3647 | text | null | Two simple machines that are based on the inclined plane are the wedge and the screw. Both increase the force used to move an object because the input force is applied over a greater distance than the output force. | 0.467809 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | 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 | 0.466373 |
DQ_003666 | Which part of the leaf connects the blade to the node? | question_images/parts_leaf_3132.png | a. Vein, b. Petiole, c. Stem, d. Midrib | b | T_4421 | text | null | 1. What is the traditional definition of gravity? 2. Identify factors that influence the strength of gravity between two objects. | 0.465552 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 1 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003525 | image | question_images/parts_leaf_1087.png | parts_leaf_1087.png | 0.966354 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | 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. | 0.845825 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.832669 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003588 | image | question_images/parts_leaf_1115.png | parts_leaf_1115.png | 0.828277 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003608 | image | question_images/parts_leaf_1119.png | parts_leaf_1119.png | 0.826973 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.816441 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.805252 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003538 | image | question_images/parts_leaf_1091.png | parts_leaf_1091.png | 0.794255 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.791624 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | 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. | 0.575032 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_3970 | text | null | The number of protons per atom is always the same for a given element. However, the number of neutrons may vary, and the number of electrons can change. | 0.554847 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.554769 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | 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 | 0.554738 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | 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. | 0.542674 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_1698 | text | null | How well soil forms and what type of soil forms depends on several different factors, which are described below. | 0.533364 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_0091 | text | null | The rate of decay of unstable isotopes can be used to estimate the absolute ages of fossils and rocks. This type of dating is called radiometric dating. | 0.533169 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | 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. | 0.532968 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_3278 | text | null | What does population growth mean? You can probably guess that it means the number of individuals in a population is increasing. The population growth rate tells you how quickly a population is increasing or decreasing. What determines the population growth rate for a particular population? | 0.531977 |
DQ_003667 | What is the minimum number of petioles a leaf can have? | question_images/parts_leaf_3132.png | a. 2, b. 4, c. 3, d. 1 | d | T_1447 | text | null | Minerals are divided into groups based on chemical composition. Most minerals fit into one of eight mineral groups. | 0.530253 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 1 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003525 | image | question_images/parts_leaf_1087.png | parts_leaf_1087.png | 0.966354 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | 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. | 0.845825 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.832669 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003588 | image | question_images/parts_leaf_1115.png | parts_leaf_1115.png | 0.828277 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003608 | image | question_images/parts_leaf_1119.png | parts_leaf_1119.png | 0.826973 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.816441 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.805252 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003538 | image | question_images/parts_leaf_1091.png | parts_leaf_1091.png | 0.794255 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.791624 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.393992 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | 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 | 0.384167 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_3278 | text | null | What does population growth mean? You can probably guess that it means the number of individuals in a population is increasing. The population growth rate tells you how quickly a population is increasing or decreasing. What determines the population growth rate for a particular population? | 0.382473 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_1117 | text | null | Scientists know that the mantle is made of rock based on evidence from seismic waves, heat flow, and meteorites. The properties fit the ultramafic rock peridotite, which is made of the iron- and magnesium-rich silicate minerals (Figure 1.1). Peridotite is rarely found at Earths surface. | 0.378645 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_3201 | text | null | Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in the exoskeleton of arthropods. | 0.377982 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_2315 | text | null | Did you ever get a splinter in your skin, like the one in Figure 21.11? It doesnt look like a serious injury, but even a tiny break in the skin may let pathogens enter the body. If bacteria enter through the break, for example, they could cause an infection. These bacteria would then face the bodys second line of defense. | 0.375405 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | 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. | 0.372345 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_3491 | text | null | Vitamins and minerals are also nutrients. They do not provide energy, but they are needed for good health. | 0.37185 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_2163 | text | null | The vitamins to watch out for are A, D, E, and K. These vitamins are stored by the body, so they can build up to high levels. | 0.369754 |
DQ_003668 | What does the petiole lead to? | question_images/parts_leaf_3132.png | a. Vein, b. Blade, c. Node, d. Midrib | d | T_3943 | text | null | The particles that make up matter are also constantly moving. They have kinetic energy. The theory that all matter consists of constantly moving particles is called the kinetic theory of matter. You can learn more about it at the URL below. | 0.368362 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003663 | image | question_images/parts_leaf_3132.png | parts_leaf_3132.png | 1 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003525 | image | question_images/parts_leaf_1087.png | parts_leaf_1087.png | 0.966354 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | 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. | 0.845825 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003578 | image | question_images/parts_leaf_1113.png | parts_leaf_1113.png | 0.832669 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003588 | image | question_images/parts_leaf_1115.png | parts_leaf_1115.png | 0.828277 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003608 | image | question_images/parts_leaf_1119.png | parts_leaf_1119.png | 0.826973 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003522 | image | question_images/parts_leaf_1085.png | parts_leaf_1085.png | 0.816441 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003806 | image | question_images/parts_leaf_6265.png | parts_leaf_6265.png | 0.805252 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003538 | image | question_images/parts_leaf_1091.png | parts_leaf_1091.png | 0.794255 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | DQ_003728 | image | question_images/parts_leaf_3844.png | parts_leaf_3844.png | 0.791624 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | 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? | 0.650499 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2197 | text | null | Blood vessels are long, tube-like organs that consist mainly of muscle, connective, and epithelial tissues. They branch to form a complex network of vessels that run throughout the body. This network transports blood to all the bodys cells. | 0.643566 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2219 | text | null | After the blood in the capillaries in the lungs picks up oxygen, it leaves the lungs and travels to the heart. The heart pumps the oxygen-rich blood into arteries, which carry it throughout the body. The blood passes eventually into capillaries that supply body cells. | 0.581757 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2203 | text | null | Blood is a liquid connective tissue. It circulates throughout the body via blood vessels due to the pumping action of the heart. You couldnt survive without the approximately 4.5 to 5 liters of blood that are constantly being pumped through your blood vessels. | 0.572834 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2192 | text | null | Systemic circulation is the longer loop of the cardiovascular system. It carries blood between the heart and the rest of the body. Oxygen-rich blood flows from the heart to cells throughout the body. As it passes cells, the blood releases oxygen and absorbs carbon dioxide. Then the oxygen-poor blood returns to the heart. | 0.553076 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2270 | text | null | Nervous system problems include diseases and injuries. Most nervous system diseases cant be prevented. But you can take steps to decrease your risk of nervous system injuries. | 0.549748 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.543197 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2767 | text | null | Problems can occur with red blood cells, white blood cells, platelets, and other parts of the blood. Many blood disorders are genetic, meaning they are inherited from a parent. Some blood diseases are caused by not getting enough of a certain nutrient, while others are cancers of the blood. | 0.540875 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | a | T_2200 | text | null | Diseases of the cardiovascular system are common and may be life threatening. A healthy lifestyle can reduce the risk of such diseases developing. | 0.539876 |
DQ_003669 | What part do the veins connect to? | question_images/parts_leaf_3132.png | a. midrib, b. blade, c. node, d. petiole | 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. | 0.539324 |
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