The hallow bones of a bird are an example of an . a. external adaptation
b. internal adaptation

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

In general, are there any major differences that you can see? explain