A) Insects often form monogamous relationships because males provide significant parental care to offspring.
B) Monogamous relationships are most beneficial when males provide significant parental care to offspring.
C) Animals in monogamous relationships do not mate outside of the relationship.
D) Birds rarely form monogamous relationships because offspring require less parental care.
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A) mutations are more likely to be purged.
B) offspring are more likely to possess traits to help cope with future environmental challenges.
C) offspring are likely to have greater fitness than asexually produced offspring.
D) offspring are better able to fight the evolutionary arms race.
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A) An individual plant whose flowers contain either female structures or male structures but not both.
B) An individual plant with flowers that contain female structures and flowers that contain male structures.
C) An individual plant whose flowers contain neither female nor male structures.
D) An individual plant whose flowers contain both female and male structures.
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A) most of the females do not mate, so fewer males are required.
B) a large number of females can mate with a single male.
C) females reproduce asexually, which does not require males.
D) higher temperatures inside figs result in mostly female offspring.
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A) occurs when offspring are produced by two parents without copulation.
B) occurs when offspring are produced by and receive genetic material from only one parent.
C) occurs when offspring are produced by and receive genetic material from both parents.
D) is accomplished only via parthenogenesis.
E) is accomplished only via vegetative reproduction.
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A) outcrossing.
B) self-fertilization.
C) cloning.
D) parthenogenesis.
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A) random assortment in meiosis
B) production of homozygous recessive nonviable offspring
C) random assortment in mitosis
D) production of offspring without the mutation
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A) directly beneficial to the female.
B) genetically linked to the sexual trait.
C) inherited by offspring.
D) not inherited by offspring.
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A) Long tails in males might indicate a good genetic composition (good genes hypothesis) .
B) Long tails in males might indicate good overall health of males (good health hypothesis) .
C) Both a and b are possible.
D) Neither a nor b is possible.
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A) increased fitness of offspring due to better genotype
B) increased fitness of extra male due to increased numbers of offspring
C) increased fitness of monogamous female due to greater fitness of offspring
D) increased fitness of monogamous male due to less energy expended on reproduction
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A) testicles of males
B) mammary tissues of females
C) fallopian tubes of females
D) tusks of male elephants
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A) Self-fertilization reduces inbreeding depression.
B) Self-fertilization produces more viable offspring than outcrossing.
C) Attracting mates is expensive.
D) Self-fertilization produces more offspring than outcrossing.
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A) Wolbachia is passed only through infected eggs.
B) Wolbachia reproduce only in males.
C) Females are more susceptible to Wolbachia than males.
D) Males are more susceptible to Wolbachia than females.
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A) runaway sexual selection.
B) sexual conflict.
C) the handicap principle.
D) the good genes hypothesis.
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A) polyandry.
B) promiscuity.
C) polygyny.
D) monogamy.
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A) runaway sexual selection.
B) the handicap principle.
C) the good genes hypothesis.
D) the good health hypothesis.
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A) extra-pair copulation.
B) mate guarding.
C) monogamy.
D) the handicap principle.
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A) mitosis
B) binary fission
C) clonal duplication
D) meiosis
E) parthenogenesis
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A) rare in species that engage in brood care.
B) common in mobile aquatic animals.
C) common in species that actively seek mates.
D) rare in flowering plants.
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Inbreeding depression occurs w...View Answer
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