Researchers who compared the sequences of 200 brain-related genes in different animals found a collection of genes that evolved most rapidly in:

Question

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The question states that the researchers compared 200 brain-related genes in different animals and found a collection of genes that evolved most rapidly. The fact that these genes are related to the brain suggests that they may be important for brain function and evolution. The answer is not A) birds, B) invertebrates or D) worms, as there is no indication that these animals have brain-related genes that evolved more rapidly than others. Primates have complex brains and behaviors, which may explain why they have genes related to the brain that evolved most rapidly. Therefore, C) primates is the best choice.

Researchers Who Compared the Sequences of 200 Brain-Related Genes in Different