BIO 152 EXAM question & answer 2023

BIO 152 EXAM question & answer 2023 10.) the bone structure of the forelimbs of horses, bats, and whales indicates that structures with..... - correct answer different functions may retain evidence of descent from a common form 9.) accept the biological species concept and insist that classification must reflect evolutionary history are called___. - correct answer cladists 11.) for members of two different populations to be part of the same species they must ____. - correct answer be able to interbreed 12.) which group of gymnosperms has only one species, which has survived by human cultivation - correct answer ginkgoes 13.) the principle way for genetic variation to spread through a population is by ____. - correct answer sexual reproduction 14.) without genetic variability, a population cannot ____. - correct answer evolve 15.) change in gene frequency this is NOT due to selection, mutation, or immigration - correct answer genetic drift 16.) if a small group of individuals colonizes a newly formed island, the gene frequency of the population is likely to be different from that of the population they came from. This is called ___. - correct answer founder effect 17.) what effect do mycorrhizae have on the plants with which they associate? - correct answer they are symbionts, helping the plant to take in minerals 18.) the evolutionary tendency in the alternation of generations is - correct answer reduction of the gametophyte to a few cells and the gametophyte is protected by the sporocyte (a and b only)