Answer:
e.DDT
Explanation:
DDT is biologically magnified and concentrated as it moves through the food web. This increase in concentration is due to Metabolism of DDT which excretes more slowly than the nutrients which moves from one trophic level to next. so DDT accumulates in the body especially in the Fats.
A semipermeable membrane is any biological or synthetic membrane that allows certain molecules or ions to pass through while restricting others.
Ice actually has a very different structure than liquid water, in that the molecules align themselves in a regular lattice rather than more randomly as in the liquid form. It happens that the lattice arrangement allows water molecules to be more spread out than in a liquid, and, thus, ice is less dense than water.
Answer:
because the frog is not really persons that the reasons why frog less the circulatory sysyem
Fossils show evidence of descent with modification
