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Animal Kingdom

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Questions and Answers

What is the estimated number of living animal species as of 2022?

2.16 million

7.77 million (correct)

85,000

1.05 million

Which clade do most living animal species belong to?

Protostomes

Bilateria (correct)

Deuterostomes

Echinoderms

What is the body plan of members in the clade Bilateria?

Radially symmetric

Asymmetric

Spherically symmetric

Bilaterally symmetric (correct)

When did the Cambrian explosion, which saw the establishment of many modern animal phyla, begin?

<p>Around 539 million years ago</p> Signup and view all the answers

What is the biological kingdom of animals?

<p>Animalia</p> Signup and view all the answers

Animal Kingdom

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Questions and Answers

What is the estimated number of living animal species as of 2022?

Which clade do most living animal species belong to?

What is the body plan of members in the clade Bilateria?

When did the Cambrian explosion, which saw the establishment of many modern animal phyla, begin?

What is the biological kingdom of animals?

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