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Questions and Answers
What is the estimated number of living animal species on Earth as of 2022?
What is the estimated number of living animal species on Earth as of 2022?
- 1.05 million
- 7.77 million (correct)
- 2.16 million
- 85,000
Which scientific study is concerned with the study of animal behaviors?
Which scientific study is concerned with the study of animal behaviors?
- Entomology
- Zoology
- Ethology (correct)
- Herpetology
What is the most successful subphylum under the deuterostomes?
What is the most successful subphylum under the deuterostomes?
- Hemichordates
- Vertebrates (correct)
- Echinoderms
- Chordates
Which group do most living animal species belong to?
Which group do most living animal species belong to?
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During embryonic development, animals grow from a hollow sphere of cells called:
During embryonic development, animals grow from a hollow sphere of cells called:
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