General Biology Exam 4 Chapters 14-19 1. Repetition of body parts which can lead to specialization of parts is called ________. A.segmentation B.cephalization C.coelomic development D.asymmetry 2. Heterozygotes help maintain recessive alleles in a gene pool because ________. A.the dominant alleles cause recessive alleles to be passed on to offspring B.they will only reproduce with other heterozygotes C.they are carriers of recessive alleles D.None of the choices are correct. 3. Archaea ________. A.all have plasma membranes and cell walls B.have plasma membranes and may have cell walls C.do not have plasma membranes but have a unique type of cell wall D.None of the choices are correct. 4. Gene flow may occur between populations of the same species. True 5. Geographic isolation is not a factor in sympatric speciation. True 6. False False A bacteriophage which remains latent for a period of time after infecting a bacterium is undergoing the ________. A.integration cycle B.viral cycle C.lysogenic cycle D.lytic cycle 1 7. A population of insects are exposed regularly to an insecticide. Some of the individuals have phenotypes which allow them to survive. This is an example of ________. A.stabilizing selection B.disruptive selection C.allelic selection D.directional selection 8. Populations which show the founder effect originated from a large population with a diverse gene pool. True 9. False In nonvascular plants and seedless vascular plants, what is required in sexual reproduction in order for sperm to reach eggs? A.wind B.water C.insects D.soil 10. The theory of uniformitarianism which states that geological changes occurred at a uniform rate was proposed by ________. A.Charles Darwin B.Georges Cuvier C.Jean-Baptiste Lamarck D.Charles Lyell 11. Bacteria are important decomposers as ________. A.photoautotrophs B.saptrotrophs C.chemoautotrophs D.saproautotrophs 2 12. Biogeography is the study of ________. A.fossils B.similar genetic sequences in related organisms C.distribution of organisms throughout the world D.vestigial structures found in related organisms 13. Vascular tissue is ________. A.composed of xylem and phloem B.the primary photosynthetic tissue C.involved in sexual reproduction D.limits the size of plants 14. Which of the following is not a possible cause of heritable variation in a population? A.chromosomal mutations B.fertilization C.death of post-reproductive individuals due to a harmful mutation D.meiotic assortment of chromosomes 15. Humans are a type of ___ mammal, producing extraembryonic membranes which help the developing fetus. A.placental B.monotreme C.cloacal D.marsupial 16. In random mating ________. A.individuals choose the most attractive mate B.there is no influence over mate choice C.breeding between two different species occurs D.no offspring are produced 3 17. ___ arrived at the idea of natural selection during the same time period. A.Maltus and Cuvier B.Darwin and Wallace C.Cuvier and Wallace D.Darwin and Lamarck 18. If one species mates in the spring and a second species in the same area mates in the fall, this is called ________.. A.behavioral isolation B.habitat isolation C.temporal isolation D.hybrid sterility 19. Fig. 15.1 shows an example of one population adapting to its environment over time. Which type of selection does it represent? A.disruptive selection B.stabilizing selection C.directional selection D.allelic selection 4 20. Sponges capture food using nematocysts. True False 21. The front leg of a horse and the front leg of a lizard are ________. A.analgous structures B.homologous structures C.vestigial structures D.both homologous and vestigial structures 22. The position of a common ancestor is most important to ________. A.cladists B.traditionalists C.neither cladists or traditionalists D.both cladists and traditionalists 23. One group of protozoans which are non-motile, produce spores, and have disease-causing species are the ________. A.foraminiferans B.trypanosomes C.sporozoans D.amoeboids 24. In gymnosperms, seeds are found ________. A.within a fruit B.on the scales of a cone C.on the surface of leaves D.within a gametophyte structure 25. In nature, the conditions commonly occur on which the Hardy-Weinberg principle of equilibrium in allele frequency depend. True False 5 26. Which of the following equations represents the Hardy-Weinberg principle? A.p + q = 1 B.a2 + b2 = c2 C.p2 + 2pq + q2 = 1 D.x2 + y = z2 27. Fungi which penetrate a plant's roots to share nutrients are called ________. A.lichens B.mycorrhizal fungi C.mycelial fungi D.fruiting bodies 28. Fossil evidence indicates which group of organisms arose first on earth? A.plants B.bacteria C.animals D.fungi 29. Pollen is produced in the ________. A.stamen B.filament C.anther D.anther of the stamen 30. Fitness refers to ________. A.the variety of characteristics B.reproductive success C.beneficial mutations D.the health of an individual 31. Flowering plants provide their offspring with an initial food source as ________. A.endosperm B.cotyledons C.a seed coat D.endosperm or cotyledons 6 32. Similarities in mitochondrial DNA among Europeans supports the multiregional continuity hypothesis of human evolution. True False 33. The fact that all living organisms use DNA and ATP in the same ways is part of ___ in support of evolution. A.anatomical evidence B.biochemical evidence C.fossil evidence D.biogeographical evidence 34. Because a plant life cycle contains a sporophyte and gametophyte which form at different times, it is called ________. A.an alternation of meiosis B.an alternation of generations C.sporophyte gametophyte interchange D.sporophyte switch 35. In Fig. 18.1, part Z is ________. A.stored food B.the embryo C.the seed coat D.the plumule 7 36. One of the major evolutionary trends among primates is ________. A.decreasing height B.increasing brain size C.increasing coelom size D.decreasing hairiness 37. Which of the following is not an important evolutionary event in plant adaptation to land? A.seed structure B.flower C.vascular tissue D.photosynthesis 38. Use of chemical signals in mate recognition is a type of postzygotic isolating mechanism. True False 39. Some viral diseases can be prevented by vaccination. True False 40. Ray-finned fishes with air bladders are grouped in the ________. A.cartilaginous fishes B.jawless fishes C.bony fishes D.tunicates 41. Even though adult sea stars are radially symmetrical and lack a head with sensory organs, they are ________. A.active predators B.filter feeders C.unable to move about D.both filter feeds and unable to move about 8 42. Similarities due to convergent evolution is called ________. A.analogy B.homology C.taxonomy D.phylogeny 43. The entire number of alleles for all genes in a population is called the ________. A.allele frequency B.allele pool C.genetic complement D.gene pool 44. In the protist group, ___ are chemoheterotrophs and ___ are photoautotrophs. A.halophiles/ algae B.algae/ protozoans C.protozoans/ algae D.protozoans/ archaea 45. Reproductive barriers which act by preventing formation of a zygote are called ________. A.hybrid isolating mechanisms B.postzygotic isolating mechanisms C.prezygotic isolating mechanisms D.both hybrid and prezygotic isolating mechanisms 46. Darwin was the only scientist of his time period to propose natural selection. True False 47. A common misconception is that humans evolved from apes. Which of the following is a correct statement about human evolution? A.humans and apes are examples of unrelated groups arising from convergent evolution B.humans share a common ancestor with apes C.humans are more closely related to prosimians than apes D.apes evolved from a human ancestor 9 48. Viruses reproduce by ________. A.mitosis or meiosis B.using a cell's metabolic processes C.mating with other viruses D.conjugation 49. If all birds had solid bones, they would not be capable of ________. A.sexual reproduction B.swimming C.flight D.endothermy 50. All bacteria are pathogenic to humans. True False 10 General Biology Exam 4 Chapters 14-19 Key 1. A 2. C 3. B 4. TRUE 5. TRUE 6. C 7. D 8. FALSE 9. B 10. D 11. B 12. C 13. A 14. C 15. A 16. B 17. B 18. C 19. A 20. FALSE 21. B 22. D 23. C 1 24. B 25. FALSE 26. C 27. B 28. B 29. D 30. B 31. D 32. FALSE 33. B 34. B 35. A 36. B 37. D 38. FALSE 39. TRUE 40. C 41. A 42. A 43. D 44. C 45. C 46. FALSE 47. B 48. B 49. C 50. FALSE 2 3 General Biology Exam 4 Chapters 14-19 Summary Category Difficulty: 1 # of Questions 38 Difficulty: 2 12 Mader - 014 Chapter... 8 Mader - 015 Chapter... 8 Mader - 016 Chapter... 8 Mader - 017 Chapter... 8 Mader - 018 Chapter... 9 Mader - 019 Chapter... 9 1