Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?

1. Protostomes invade terrestrial environments.

2. Cambrian explosion occurs.

3. Deuterostomes invade terrestrial environments.

4. Vertebrates become top predators in the seas.

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#Question id: 20712

#SCPH28 | Zoology

In electron transfer process usable energy is recovered through which reactions and forms energy storage compounds or electrochemical gradients

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#Question id: 18723

#SCPH01 Biochemistry

Which of the following will have more efficient ligation?

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#Question id: 5537

#SCPH28 | Zoology

The segmented blocks of tissue that develop on each side of the notochord are called the

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#Question id: 8890

#SCPH28 | Zoology

The larvae of many common tapeworm species that infect humans are usually found

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#Question id: 1562

#SCPH06 I Botany

________ are cells of the mammalian innate immune response that help destroy tumors.