Q: Recent fossil evidence has shown that the evolutionary divergence of what group from other land animals was characterized by streamlining and simplifying the digestive system, which allowed a high metabolic rate? Choices: - fish - rats - marsupials - birds A:
birds

Q: Polygenic traits result in a distribution that resembles a curve. what is the shape of the curve? Choices: - W-shaped - J-shaped - egg-shaped - bell-shaped A:
bell-shaped

Q: What are the largest phylum in the animal kingdom? Choices: - crustaceans - cephalopods - mammals - arthropods A:
arthropods