Answer: Our kidneys filter out excess ions from our blood so that they can be excreted through urine. If the concentration of ions is too high, the kidneys make sure to filter as much of them as they can out of the body. If there are not enough ions, the kidneys will filter them back into the system.
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The answer is B!!!! it’s pretty easy
Answer:
Diversifying or disruptive selection increases genetic variance when natural selection selects for two or more extreme phenotypes that each have specific advantages.
