The 8 week old embryo has forelimbs and hind limbs. The hind limbs disappear in later development. What information can you gain from looking at the development of an embryo

What enzyme is most important for dna replication and why?

What problem would a person most likely have if her kidney did not work correctly?

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.