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DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003445
image
abc_question_images/types_leaves_10979.png
types_leaves_10979.png
1
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_004439
image
question_images/types_leaves_979.png
types_leaves_979.png
0.895367
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003521
image
abc_question_images/types_leaves_16315.png
types_leaves_16315.png
0.830713
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003488
image
abc_question_images/types_leaves_14496.png
types_leaves_14496.png
0.816422
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003504
image
abc_question_images/types_leaves_14726.png
types_leaves_14726.png
0.814572
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_004393
image
question_images/types_leaves_6315.png
types_leaves_6315.png
0.795871
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003468
image
abc_question_images/types_leaves_14400.png
types_leaves_14400.png
0.795483
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003452
image
abc_question_images/types_leaves_11017.png
types_leaves_11017.png
0.78267
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_003493
image
abc_question_images/types_leaves_14707.png
types_leaves_14707.png
0.781413
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
DQ_004157
image
question_images/types_leaves_4410.png
types_leaves_4410.png
0.770189
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_1268
text
null
On land, seed plants and trees diversified and spread widely. Ferns were common at the time of the dinosaurs (Figure
0.617498
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
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:
0.588279
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.551682
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_1698
text
null
How well soil forms and what type of soil forms depends on several different factors, which are described below.
0.546186
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_3036
text
null
Fungi are extremely important to the ecosystem because they are one of the major decomposers of organic material. Decomposing organic material is how fungi acquire energy. But fungi have other roles in addition to being decom- posers. How do fungi help people? They are used to help prepare food and beverages, and they have many other uses.
0.541967
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
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.
0.541264
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_2683
text
null
Most fungi grow on moist soil or rotting vegetation such as dead logs. Some fungi live in water. Others live in or on other organisms. Fungi get their nutrition by absorbing organic compounds from other organisms. The other organisms may be dead or alive, depending on the fungus.
0.522344
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_2623
text
null
Corals appeared in the oceans during the Silurian period. Fish continued to evolve. On land, vascular plants appeared. These are plants that have special tissues to circulate water and other substances. This allowed plants to become larger and colonize drier habitats.
0.521638
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
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
0.518823
DQ_003445
Which label shows the Wood Fern?
abc_question_images/types_leaves_10979.png
a. M, b. N, c. L, d. H
b
T_1800
text
null
Most fossils are preserved by one of five processes outlined below (Figure 1.1):
0.518503
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003445
image
abc_question_images/types_leaves_10979.png
types_leaves_10979.png
1
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_004439
image
question_images/types_leaves_979.png
types_leaves_979.png
0.895367
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003521
image
abc_question_images/types_leaves_16315.png
types_leaves_16315.png
0.830713
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003488
image
abc_question_images/types_leaves_14496.png
types_leaves_14496.png
0.816422
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003504
image
abc_question_images/types_leaves_14726.png
types_leaves_14726.png
0.814572
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_004393
image
question_images/types_leaves_6315.png
types_leaves_6315.png
0.795871
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003468
image
abc_question_images/types_leaves_14400.png
types_leaves_14400.png
0.795483
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003452
image
abc_question_images/types_leaves_11017.png
types_leaves_11017.png
0.78267
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_003493
image
abc_question_images/types_leaves_14707.png
types_leaves_14707.png
0.781413
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
DQ_004157
image
question_images/types_leaves_4410.png
types_leaves_4410.png
0.770189
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_1268
text
null
On land, seed plants and trees diversified and spread widely. Ferns were common at the time of the dinosaurs (Figure
0.627841
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
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:
0.6057
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
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.
0.599723
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.593318
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_2746
text
null
Like all organisms, bacteria need energy, and they can acquire this energy through a number of different ways.
0.586207
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_2676
text
null
For a long time, scientists classified fungi as members of the Plant Kingdom. Fungi share several obvious traits with plants. For example, both fungi and plants lack the ability to move. Both grow in soil, and both have cell walls. Some fungi even look like plants.
0.583356
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_0460
text
null
Most pollutants enter the air when fossil fuels burn. Some are released when forests burn. Others evaporate into the air.
0.581347
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_2385
text
null
Two important concepts associated with the ecosystem are niche and habitat.
0.581337
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
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.
0.579324
DQ_003446
Which one of these represents the hay-scented fern?
abc_question_images/types_leaves_10979.png
a. Y, b. H, c. M, d. N
c
T_2686
text
null
Fungi may cause disease in people as well as other organisms. On the other hand, people have been using fungi for thousands of years.
0.577874
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003445
image
abc_question_images/types_leaves_10979.png
types_leaves_10979.png
1
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_004439
image
question_images/types_leaves_979.png
types_leaves_979.png
0.895367
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003521
image
abc_question_images/types_leaves_16315.png
types_leaves_16315.png
0.830713
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003488
image
abc_question_images/types_leaves_14496.png
types_leaves_14496.png
0.816422
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003504
image
abc_question_images/types_leaves_14726.png
types_leaves_14726.png
0.814572
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_004393
image
question_images/types_leaves_6315.png
types_leaves_6315.png
0.795871
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003468
image
abc_question_images/types_leaves_14400.png
types_leaves_14400.png
0.795483
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003452
image
abc_question_images/types_leaves_11017.png
types_leaves_11017.png
0.78267
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_003493
image
abc_question_images/types_leaves_14707.png
types_leaves_14707.png
0.781413
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
DQ_004157
image
question_images/types_leaves_4410.png
types_leaves_4410.png
0.770189
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_1268
text
null
On land, seed plants and trees diversified and spread widely. Ferns were common at the time of the dinosaurs (Figure
0.579987
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
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
0.516113
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
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:
0.504444
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.499683
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
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.
0.493951
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_2676
text
null
For a long time, scientists classified fungi as members of the Plant Kingdom. Fungi share several obvious traits with plants. For example, both fungi and plants lack the ability to move. Both grow in soil, and both have cell walls. Some fungi even look like plants.
0.483911
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
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.
0.479305
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_1942
text
null
With all these adaptations, its easy to see why vascular plants were very successful. They spread quickly and widely on land. As vascular plants spread, many nonvascular plants went extinct. Vascular plants became and remain the dominant land plants on Earth.
0.476099
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_2623
text
null
Corals appeared in the oceans during the Silurian period. Fish continued to evolve. On land, vascular plants appeared. These are plants that have special tissues to circulate water and other substances. This allowed plants to become larger and colonize drier habitats.
0.472187
DQ_003447
Which letter represents a Christmas fern?
abc_question_images/types_leaves_10979.png
a. Y, b. M, c. N, d. H
d
T_2746
text
null
Like all organisms, bacteria need energy, and they can acquire this energy through a number of different ways.
0.469832
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003445
image
abc_question_images/types_leaves_10979.png
types_leaves_10979.png
1
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_004439
image
question_images/types_leaves_979.png
types_leaves_979.png
0.895367
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003521
image
abc_question_images/types_leaves_16315.png
types_leaves_16315.png
0.830713
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003488
image
abc_question_images/types_leaves_14496.png
types_leaves_14496.png
0.816422
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003504
image
abc_question_images/types_leaves_14726.png
types_leaves_14726.png
0.814572
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_004393
image
question_images/types_leaves_6315.png
types_leaves_6315.png
0.795871
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003468
image
abc_question_images/types_leaves_14400.png
types_leaves_14400.png
0.795483
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003452
image
abc_question_images/types_leaves_11017.png
types_leaves_11017.png
0.78267
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_003493
image
abc_question_images/types_leaves_14707.png
types_leaves_14707.png
0.781413
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
DQ_004157
image
question_images/types_leaves_4410.png
types_leaves_4410.png
0.770189
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
T_1268
text
null
On land, seed plants and trees diversified and spread widely. Ferns were common at the time of the dinosaurs (Figure
0.543355
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
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:
0.471195
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.463355
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
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
0.452999
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
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?
0.446731
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
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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.
0.434547
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
T_2623
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Corals appeared in the oceans during the Silurian period. Fish continued to evolve. On land, vascular plants appeared. These are plants that have special tissues to circulate water and other substances. This allowed plants to become larger and colonize drier habitats.
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DQ_003448
Where is the Christmas fern?
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a. h, b. y, c. m, d. n
a
T_2956
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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.
0.426036
DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
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Fungi are extremely important to the ecosystem because they are one of the major decomposers of organic material. Decomposing organic material is how fungi acquire energy. But fungi have other roles in addition to being decom- posers. How do fungi help people? They are used to help prepare food and beverages, and they have many other uses.
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DQ_003448
Where is the Christmas fern?
abc_question_images/types_leaves_10979.png
a. h, b. y, c. m, d. n
a
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Whisk ferns have green branching stems with no leaves, so they resemble a whisk broom ( Figure 1.5). Another striking feature of the whisk ferns is its spherical yellow sporangia. Ferns are common in the understory of the tropical rainforest. The first leaves of most ferns appear curled up into fiddleheads.
0.42043
DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_003449
image
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1
DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_003516
image
abc_question_images/types_leaves_14825.png
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0.876836
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Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_003491
image
abc_question_images/types_leaves_14498.png
types_leaves_14498.png
0.785462
DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_004442
image
question_images/types_leaves_988.png
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0.77553
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Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_004378
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question_images/types_leaves_6312.png
types_leaves_6312.png
0.769636
DQ_003449
Identify the alternate in this picture
abc_question_images/types_leaves_10988.png
a. N, b. A, c. S, d. W
b
DQ_003392
image
abc_question_images/parts_plant_11145.png
parts_plant_11145.png
0.769441
DQ_003449
Identify the alternate in this picture
abc_question_images/types_leaves_10988.png
a. N, b. A, c. S, d. W
b
DQ_003452
image
abc_question_images/types_leaves_11017.png
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DQ_003449
Identify the alternate in this picture
abc_question_images/types_leaves_10988.png
a. N, b. A, c. S, d. W
b
DQ_003960
image
question_images/parts_plant_3790.png
parts_plant_3790.png
0.767981
DQ_003449
Identify the alternate in this picture
abc_question_images/types_leaves_10988.png
a. N, b. A, c. S, d. W
b
DQ_003508
image
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0.767451
DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
DQ_003965
image
question_images/parts_plant_3791.png
parts_plant_3791.png
0.760696
DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
T_1797
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The two types of air pollutants are primary pollutants, which enter the atmosphere directly, and secondary pollutants, which form from a chemical reaction.
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DQ_003449
Identify the alternate in this picture
abc_question_images/types_leaves_10988.png
a. N, b. A, c. S, d. W
b
T_0117
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There are variations in the traits of a population. For example, there are lots of variations in the color of human hair. Hair can be blonde, brown, black, or even red. Hair color is a trait determined by genes.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
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Energy is defined as the ability to cause changes in matter. You can change energy from one form to another when you lift your arm or take a step. In each case, energy is used to move matter you. The energy of moving matter is called kinetic energy.
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DQ_003449
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a. N, b. A, c. S, d. W
b
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A given kind of matter has the same chemical makeup and the same chemical properties regardless of its state. Thats because state of matter is a physical property. As a result, when matter changes state, it doesnt become a different kind of substance. For example, water is still water whether it exists as ice, liquid water, or water vapor.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
T_3491
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Vitamins and minerals are also nutrients. They do not provide energy, but they are needed for good health.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
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All air pollutants are harmful. Thats why theyre called pollutants. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
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Other bacteria are parasitic and can cause illness. In parasitism, the bacteria benefit, and the other organism is harmed. Harmful bacteria will be discussed in another concept.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
T_2237
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All known matter can be divided into a little more than 100 different substances called elements.
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a. N, b. A, c. S, d. W
b
T_3043
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The great apes are the members of the biological family Hominidae, which includes four living genera: chimpanzees, gorillas, orangutans and humans. Among these four genera are just seven species, two of each except humans, which has only one species, Homo sapiens.
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DQ_003449
Identify the alternate in this picture
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a. N, b. A, c. S, d. W
b
T_0457
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There are two basic types of pollutants in air. They are known as primary pollutants and secondary pollutants.
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