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6==. During spermatogenesis, four sperm result from each primary spermatocyte, which divides into two haploid secondary spermatocytes; these cells will go through a second meiotic division to produce four spermatids
In the course of recent years, 60 percent of all biological community administrations have declined as an immediate consequence of the change of area to the creation of nourishments, powers and strands. This ought to shock no one, say seven of the world's driving ecological researchers, who met to all things considered study the pitfalls of using markets to prompt individuals to assess the natural expenses of their conduct and arrangements. We are getting what we pay for.
The difference is really simple, it's basically whether it's an plant or animal
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Explanation:
I think it b c d sorry if wrong
