The answer is Agriculture, hope it helps
comes from the earth's crust<span />
The correct answer for this question is "shaded square." The symbol that would the horse breeder use to show a male who is affected by a defective gene is the shaded square. <span>Pedigree charts use shaded symbols to show organisms that have a particular trait, such as a defective gene, being traced in the chart. </span>
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i'm not sure if these are all the options you have but the answer is that active transport requires energy and that active transport is the movement of molecules from an area of their lower to their higher concentration against the concentration gradient
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