Selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as __________.

a. directional selection
b. disruptive selection
c. sexual selection
d. stabilizing selection
e. balancing selection


Answer: c. sexual selection

Biology & Microbiology

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In a fetal pig, dorsal and ventral refer respectively to

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Staphylococcus aureus is the causative agent of

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Which example is most clearly a case of density-dependent population regulation?

A) the summer drying of savanna grass for an insect that feeds on grass sap B) a dangerous new flu strain that is transmitted among humans by sneezing C) the first hard frost of fall for a population of annual morning glory vines D) the occurrence of rainstorms for an opportunistic desert annual

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