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Questions and Answers
What is the estimated number of extant animal species?
What is the estimated number of extant animal species?
- 100,000
- 300,000
- 1 million
- 10 million (correct)
Where did animal evolution begin?
Where did animal evolution begin?
- In the air
- In the ocean (correct)
- In freshwater habitats
- On land
What is the primary challenge scientists face in classifying animals?
What is the primary challenge scientists face in classifying animals?
- Distinguishing between corals and sponges
- Exploring ecosystems worldwide
- Identifying traits common to all animals (correct)
- Classifying sea sponges
Which group is NOT easily classified as animals?
Which group is NOT easily classified as animals?
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What distinguishes animals in terms of complexity?
What distinguishes animals in terms of complexity?
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When was the leaf chameleon (Brookesia micra) discovered?
When was the leaf chameleon (Brookesia micra) discovered?
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What distinguishes animals from autotrophic organisms?
What distinguishes animals from autotrophic organisms?
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What characteristic distinguishes animals in terms of energy derivation?
What characteristic distinguishes animals in terms of energy derivation?
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How do animals differ from plants and fungi in terms of cellular structure?
How do animals differ from plants and fungi in terms of cellular structure?
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What is a key characteristic of animal tissues that allows for coordination of motility?
What is a key characteristic of animal tissues that allows for coordination of motility?
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Which feature is unique to animal tissue structure compared to fungi and plants?
Which feature is unique to animal tissue structure compared to fungi and plants?
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Why are animals considered motile organisms?
Why are animals considered motile organisms?
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