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1. If two species of cichlid fish are observed in the same lake, they are said to be served as living only on separate continents, they are said to be a. sympatric; allopatric b. parapatric; parapatric c. parapatric; allopatric d. allopatric; sympatric e.allopatric; parapatric If two species of birds are ob. 2. Taxa that are defined by are likely to be monophyletic. a. homoplasy 3. Most of the different a. modern phyla b. ecological niches c. species b. synapomorphy d. symplesiomorphy e. overall similarity C. convergence known in animals first appear in the historical record during the Cambrian. d. endosymbionts e. cell types 4. Insects are the most diverse group of animals, and their diversification occurred relatively recently in the history of life. Which highly diverse group of plants diversified during this same time frame? a. flowering plants b. gymnosperms c. mosses d. Green Algae e. ferns 5. Which of the following may cause extinction? a. Climate change b. Disease c. Predation d. Competition e.All of the above 6. The relative diversity of lineages arises directly from variation in which process(es): a. mutation rates c. extinction rates b. speciation rates (the rates at which taxa originate) d. Both a andc e. Both b and c 7. Which type of molecule is regarded as the most plausible candidate for a self-replicator? a. DNA b. RNA c. protein d. glycogene. trans-fats 8. Sultana is a veterinary researcher working with Parrots (birds); her colleague Svetlana works with cats and dogs. Both are interested in finding safe, effective anti-anxiety drugs for the animals they are studying. If both began their trials by using existing anti-anxiety drugs used by humans, who would be more likely to succeed? a. Sultana b. Svetlana c. it is impossible to make an informed prediction 9. Paleontologists have observed that often the phenotype of a lineage remains almost constant for several million years, a phenomenon called a. phyletic gradualism. b. stasis. c. strata. d. grade e. evolutionary trend. 10. In a phylogenetic tree, the lineage emerging from the right side of a node is expected to have pared to the lineage emerging from the left side of the node. a. roughly equal species diversity, com- b. much less c. much more d. less in mammals but more in reptiles

Answer 1