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13 Cards in this Set
- Front
- Back
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Sexual reproduction creates__________ between the sexes.
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Conflict
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__________ within a species benefits the species by guaranteeing that some members of the species can adapt to ________________ changes
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heterogeneity, environment
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Human males produce _____________ to _____________ sperm per ejaculation, which increases the chance of _____________.
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200 million, 300 million, fertilization
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The operational sex ratio is a ratio between ____________ males to _________ females.
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sexually receptive; sexually receptive
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The OSR reflects a situation of ___________ and _____________.
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supply; demand
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Ibex males will _____________ other males for the chance to take control of the female herd and thus mate with them.
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fight
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When another lion takes over a pride, he will typically _____________ the cubs, which will in turn causes the female to be__________________ towards him.
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kills; sexually receptive
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Some insect species use ______________________ , in the form of food, to attract potential mates.
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mating gifts
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_________________ ________________ is a type of male competition where the males search for and mate with females as soon as they are sexually receptive.
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scramble competition
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____________ ______________ is an category of male attraction strategies, where the male will have showy feathers or vibrant plumage which is used to attract females.
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Ornamental Display
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As seen in the video, lyrebirds will mark out several territories on the forest floor and perform a song and dance. These territories are otherwise known as _____________.
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leks
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Morphological and ________ attributes of a male that lead to successful mating will be passed on to the next generation.
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behavioral
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Male ruby-throated humming birds will defend _______________ that females need for reproduction.
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resources
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