Multiple Choice
Which of the following statements is accurate regarding opsin evolution?
A) The common ancestor of jellyfish and humans had only one type of opsin.
B) In deuterostomes, r-opsins evolved into the primary photoreceptors.
C) The earliest bilaterians had three types of opsins.
D) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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