Which of the following answer choices best describes how evidence of the manatee toenails and pelvic bones supports the scientific theory of evolution of these animals?
A. The fact that manatees and elephants have toenails and pelvic bones suggests that their limbs evolved for similar use in similar environments.

B.The fact that manatees lack hind legs, unlike elephants, suggests that manatees and elephants evolved toenails in parallel without any common ancestry.

Question

Which of the following answer choices best describes how evidence of the manatee toenails and pelvic bones supports the scientific theory of evolution of these animals?
A. The fact that manatees and elephants have toenails and pelvic bones suggests that their limbs evolved for similar use in similar environments.

B.The fact that manatees lack hind legs, unlike elephants, suggests that manatees and elephants evolved toenails in parallel without any common ancestry.

anonymous · Answer

C. The existence of pelvic bones and toenails in manatees and elephants suggests that manatees and elephants evolved from the same land animal. 

D. The existence of pelvic bones and toenails in manatees and elephants suggests that these animals are evolving into similar animals.

naturesweetie · Answer

With the idea of the theory of evolution... These two organisms have adapted to their environment, right. Their bodies have changed to better their fitness, right. Well it isn't D because they aren't evolving to become similar. Which do you think?

anonymous · Answer

This is a pretest. I haven't learned about this stuff yet. But, from my knowledge on how apes are compared to humans i think it's C. Plus, the answer makes more sense.

naturesweetie · Answer

c does make the most sense... As we have seen that animals have these vestigial structures... Not necessarily needed for them but they have from left over evolution. However, it doesn't mean they did evolve from the same animal but shows it is possible