SOLVED

41) A hypothesis about the evolutionary relatedness of a group of organisms is known as a: A) taxon. B) analogy. C) homology. D) phylogeny. 42) Insect wings, bat wings, and the flaps of tissue between the limbs and body of “flying” squirrels are: A) homozygous. B) homologous. C) analogous. D) abrupt. 43) In an organism’s binomial scientific name, the first of the two names is the A) species. B) family. C) order. D) genus. 44) It has been decided, by a group of scientific experts, that lack of internal temperature regulation, presence of waterproof skin made of scales, and a waterproof egg are the three main characteristics that should be used to classify organisms as reptiles. This decision is most consistent with: A) adaptive radiation. B) cladistic taxonomy. C) natural selection. D) classical taxonomy. 45) Which pair of animals is probably most closely related evolutionarily? A) animals in the same class B) animals in the same phyla C) animals in the same family D) animals in the same genus 46) Which of the following pairs of traits represents analogous characteristics? A) trout fins and frog legs B) sparrow wings and penguin wings C) bat wings and whale fins D) bat wings and dragonfly wings 47) Analogous features in different organisms have nothing to do with common descent. These are produced by: A) convergent evolution. B) divergent evolution. C) reproductive isolation. D) adaptive radiation. 48) About 50,000 animal species are vertebrates, yet only some vertebrates then went on to evolve four limbs. This tetrapod feature is considered to be a/an ________ of vertebrates. A) ancestral character B) homologous character C) analogous character D) derived character 49) Even through they are separate species, lions and tigers can interbreed. 50) What causes geographic isolation for one kind of organism may not be isolating for another kind of organism. 51) Speciation can occur without dramatic anatomical or genetic change. 52) Speciation can never occur unless populations become separated by a geographic barrier. 53) It is desirable for a classification system to be based on the evolutionary history of the organisms being studied.