Which of these is an example of a loss of homeostasis in the body (check all that apply) A temperature of 101 deg. F.
A loss of consciousness due to low blood sugar.
An increased heart rate as a result of exercise.
The need to use the bathroom after drinking too much water.

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genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).