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#Question id: 8922
#9. Diversity of Life Forms
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
#9. Diversity of Life Forms
Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?
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#Question id: 8925
#9. Diversity of Life Forms
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: 8927
#9. Diversity of Life Forms
Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
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#Question id: 8928
#9. Diversity of Life Forms
An adult animal that possesses bilateral symmetry is most certainly also
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#Question id: 8930
#9. Diversity of Life Forms
Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the