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What is the estimated number of living animal species as of 2022?
What is the estimated number of living animal species as of 2022?
2.16 million
What is the scientific study of animals known as?
What is the scientific study of animals known as?
zoology
What are the two clades that most living animal species belong to?
What are the two clades that most living animal species belong to?
Bilateria and deuterostomes
During which geological period did the Cambrian explosion occur?
During which geological period did the Cambrian explosion occur?
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What is the body plan characteristic of members of the clade Bilateria?
What is the body plan characteristic of members of the clade Bilateria?
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