Which part of the electromagnetic spectrum is the photosynthetically active region?

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#Question id: 8922

#Section 2: Evolution

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?

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#Question id: 8923

#Section 2: Evolution

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

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#Question id: 8925

#Section 2: Evolution

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians

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#Question id: 8926

#Section 2: Evolution

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

TLS Online TPP Program

#Question id: 8927

#Section 2: Evolution

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that

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#Question id: 8928

#Section 2: Evolution

An adult animal that possesses bilateral symmetry is most certainly also