Big losses of genetic variation for the small populations are readily caused by

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Explanation:

Genetic drift can cause big losses of genetic variation for small populations. Populationbottlenecks occur when a population's size is reduced for at least one generation. describes changes in population genetics in which extreme values for a trait are favored over intermediate values

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.