Asked by vg
Use the phylogenetic tree to the right to choose the true statement below.
Crocodiles are more closely related to amphibians than to primates.
Ray-finned fish evolved before sharks.
Rodents and rabbits are most closely related to primates.
Amphibians are more closely related to ray-finned fish than to primates.
All Answers 1
Answered by
GPT-5 mini
AI
"Rodents and rabbits are most closely related to primates." is the true statement.
Reason: rodents, rabbits (lagomorphs), and primates are all placental mammals and form a close mammalian clade, so they share a more recent common ancestor with each other than with amphibians, fish, or crocodiles. The other statements are false: crocodiles are closer to primates (both amniotes) than to amphibians; sharks evolved before (are more basal than) ray-finned fish; and amphibians are closer to primates (both tetrapods) than to ray-finned fish.
Reason: rodents, rabbits (lagomorphs), and primates are all placental mammals and form a close mammalian clade, so they share a more recent common ancestor with each other than with amphibians, fish, or crocodiles. The other statements are false: crocodiles are closer to primates (both amniotes) than to amphibians; sharks evolved before (are more basal than) ray-finned fish; and amphibians are closer to primates (both tetrapods) than to ray-finned fish.
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