Final4pm - Bio94 Final Exam 2008 4pm 1. According to the...

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Bio94 Final Exam 2008 4pm 1. According to the geological time scale, what we classify as life arose during which era? a) Cambrian b) Cenozoic c) Paleozoic d) Mesozoic e) None of the above 2. Which of the following is NOT one of the tenets of natural selection? a) Species overproduce b) Limits to population growth c) Heritable variation within populations d) Inheritance of acquired characteristics e) Differential reproductive success 3. Which of the following are NOT descriptive of sexual selection? a) It usually selects for exaggerated female traits b) It can lead to sexual dimorphism c) It occurs when there are differences in ability to attract males d) It can lead to features that are harmful to survival e) All of the above 4. What is the source of heritable variation within populations? a) Acquired characteristics b) Natural selection c) Mutation d) Male-to-male competition e) All of the above 5. Which of the following phenomena could result in allopatric speciation? a) A vicariance event b) Polyploidy c) Disruptive selection within a non-geographically isolated population d) Sexual selection e) All of the above 6. What is the difference between gram-positive and gram-negative bacteria? a) Gram-positive bacteria are spherical and gram-negative bacteria are helical. b) Peptidoglycan is found on the outside of gram-positive cells c) Gram-negative bacteria have no peptidoglycan d) Two of the above e) All of the above
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7. What happens to water after it is taken up by the roots of a vascular plant? a) Water travels up the plant via the process of transpiration b) Water enters the plant through stomata, not roots c) Most of the water is used for photosynthesis d) It is actively pumped up the plant via the xylem tissue e) None of the above 8. In ferns, the sporophyte: a) Is haploid b) Is small compared to the gametophyte c) Is non-photosynthetic d) Depends on the gametophyte for nutrition early in life e) None of the above 9. All of the following are true of gymnosperms EXCEPT: a) Their seeds can be dormant b) They are heterosporous c) They have an endosperm d) Pollen is the male gametophyte e) The megaspore develops into the female gametophyte 10. Double fertilization: a) Is the simultaneous fertilization of two flowers on a plant b) Refers to the occurrence of diploid zygotes in seed plants c) Refers to the occurrence of pollination and fertilization in seed plants d) Results in a diploid zygote and a triploid endosperm e) None of the above
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Eubacteria Archaea Protista Plantae Fungi Animalia a b c d e f 1 2 3 g i h j 11. The common ancestor to present-day eukaryotes is: a) Located on branch e b) Represented by the circle labeled 3 c) Located on branch f d) Represented by the circle labeled 1 e) None of the above 12. Branch i could represent which evolutionary innovation(s): a) The origin of embryophytes b) The origin of alternation of generations c) The origin of gas exchange pores d) Two of the above e) All of the above 13. Which of the following is true about foraminiferans?
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This note was uploaded on 07/27/2008 for the course BIO SCI 05125 taught by Professor Burley during the Summer '08 term at UC Irvine.

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Final4pm - Bio94 Final Exam 2008 4pm 1. According to the...

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