Caecilians have no legs. Neither do snakes or whales. Why then do we call them tetrapods? (Hint: Consider their evolutionary histories)

Which would be the outcome in a fertilized egg if the process of meiosis did not occur? twice as many chromosomes as the parents half as many chromosomes as the parents same number of chromosomes as the parents triple the number of chromosomes as the parents?

Which sentence best expresses the differing opinions of these two book reviews?

Which would be the most useful source of evidence to support mcneill's contention?