Chapter_46 - Biology 7e(Campbell Chapter 46 Animal...

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Biology, 7e (Campbell) Chapter 46: Animal Reproduction 1) What do budding and fragmentation have in common? A) Both are types of asexual reproduction. B) Both produce large numbers of offspring. C) Both occur in sea stars. D) Both involve meiosis. E) A and B only Answer: A 2) Asexual reproduction in animals might involve A) fission and budding. B) fragmentation and mitosis. C) regeneration. D) A and B only E) A, B, and C Answer: E 3) Which of the following are possible advantages of asexual reproduction? A) It allows the species to endure periods of fluctuating or unstable environmental conditions. B) It enhances genetic variability in the species. C) It enables the species to colonize new regions rapidly. D) Both A and B are true. E) A, B, and C are true. Answer: C 4) What are the advantages of asexual reproduction? A) It promotes genetic stability. B) It enhances the survival rates of parents. C) The limited number of offspring prevents overpopulation. D) It promotes geographic distribution of species. E) It allows animals to replace lost appendages. Answer: A 5) Which of the following is a form of sexual reproduction? A) fragmentation B) budding C) hermaphroditism D) parthenogenesis E) fission Answer: C 6) You observe an organism with the following characteristics: parthenogenetic reproduction, internal development of embryos, presence of an amnion, lack of parental care of young. Of the following, the organism is probably a(n) A) earthworm. B) lizard. C) bird. D) frog. E) mammal. Answer: B
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7) Why is sexual reproduction important? A) It allows animals to conserve resources and reproduce only during optimal conditions. B) The resulting diverse phenotypes may enhance survival of a population in a changing environment. C) It can result in numerous offspring in a short amount of time. D) It enables isolated animals to colonize a habitat rapidly. E) Both A and D are important. Answer: B 8) Which of the following is not required for internal fertilization in mammal? A) copulatory organ B) sperm receptacle C) behavioral interaction D) internal development of the embryo E) All of the above are necessary for internal fertilization. Answer: D 9) What advantage does internal fertilization have compared with external fertilization? A) Usually many offspring are produced, ensuring survival of the species. B) The time and energy devoted to reproduction is decreased. C) The smaller number of offspring often receive a greater amount of parental protection. D) The increased survival rate results in rapid population increases. E) Usually a smaller number of genes are present, which promotes genetic stability. Answer: C 10) Internal and external fertilization both A) produce a zygote. B) occur in vertebrates.
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This note was uploaded on 02/27/2009 for the course SC 424111 taught by Professor Various during the Winter '08 term at Kasetsart University.

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Chapter_46 - Biology 7e(Campbell Chapter 46 Animal...

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