The skeletal structures of both the bats and the humans developed from the same embryonic tissue for the main reason that both of these skeletal contains the humerus, radius, ulna, and the five digit bones. In addition, the main difference that these structures have is that the bat's wing is longer compared to the human arm.
Answer: Atmosphere and Continental Crust
Im pretty sure the answer is E, Sexual reproduction
srry if im wrong :<
Ignore me please
