Why do some people require bifocals (or even trifocals) as they age?When light is shined into one eye, the pupils of both eyes tend to constrict (this is called a consensual response). Why does this happen? Use the lecture content to help answer this question!​

archaebacteria are found in in forest soil.

hope i spelled it right lol

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-lavira: )

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).

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