Biology_II_Final_Exam_Review

Biology_II_Final_Exam_Review - Biology II Final Exam...

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Biology II Final Exam Review: Part I 1. Heterozygote advantage and frequency-dependent selection are associated with a) directional selection b) random mutation c) balanced polymorphism d) stabilizing selection e) bottleneck effect 2. During the evolution of eukaryotes from prokaryotes, which of the following did not occur? a) a switch from aerobic to anaerobic metabolism b) endosymbiosis with once free-living prokaryotes c) loss of the cell wall in some groups d) formation of new membranous internal organelles e) infolding of the flexible cell membrane 3. Georges Cuvier is to _________ as James Hutton is to____________ a) gradualism; uniformitarianism b) inheritance of acquired traits; catastrophism c) uniformitarianism; natural selection d) catastrophism; natural selection e) catastrophism; gradualism 4. A ___________ structure in a species is one that has little or no current function, but likely had an adaptive function in an ancestor. a) hereditary b) vestigial c) paedomorphic d) endemic e) analogous 5. Which of the following statements about the amniotic egg is CORRECT? a) the chorion provides a food supply for the growing embryo b) the allantois provides a mean of isolating waste products from the growing embryo. c) the amnion is the outermost membrane that helps retain water but provides gas exchange d) the embryo is nestled within a protective albumin sac e) ALL OF THE ABOVE ARE CORRECT 6. Which of the following is descriptive of the punctuated equilibrium model? a) b) most rapid speciation is the result of polyploidy in plants c) evolution occurs gradually as the environment gradually changes, at a constant rate d) microevolution is the driving force of speciation e) none of the above 7.Which of the following is most likely the closest relative of the vascular plants? a) lycophytes b) pterophytes c) mosses d) charophyceans e) liverwarts 8. Cephalization is generally found only in animals with a) sessile of planktonic life style b) a body cavity
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c) bilateral symmetry d) hydrostatic skeleton e) deuterostome development 9. Evolutionary biologists maintain that the animal ancestral to all modern animals was similar to a) a modern member of the Phylum Porifera b) a jellyfish c) a flatworm with no distinct head d) a septate fungus e) a colonial flagellated protist 10. All of the following statements are observations or inferences of natural selection EXCEPT a) often only a fraction of offspring survive because there is a struggle for limited resources b) survival of offspring is unrelated to the abundance of essential resources c) individuals whose inherited characteristics best fit them to the environment will leave more offspring d) there is a heritable variation among individuals 11. One reason gram negative bacteria are generally more threatening pathenogens than gram positive is that a) gram positive bacteria lack the protective layer of peptidoglycan
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Biology_II_Final_Exam_Review - Biology II Final Exam...

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