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Questions and Answers
Which clade contains animals such as nematodes, arthropods, flatworms, annelids, and molluscs?
Which clade contains animals such as nematodes, arthropods, flatworms, annelids, and molluscs?
- Protostomes (correct)
- Echinoderms
- Deuterostomes
- Bilateria
What is the estimated number of living animal species as of 2022?
What is the estimated number of living animal species as of 2022?
- 1.05 million
- 2.16 million
- 7.77 million (correct)
- 85,000
What is the body plan of most living animal species?
What is the body plan of most living animal species?
- Bilaterally symmetric (correct)
- Asymmetric
- Spherical
- Radially symmetric
When did the Cambrian explosion begin?
When did the Cambrian explosion begin?
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What is the scientific study of animals known as?
What is the scientific study of animals known as?
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