The answer is A. macromolecules
There are 4 types of macromolecules; lipids, proteins, carbs and nucleic acids
I believe the awnser is D] Increased coastal flooding.
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i believe it is $9.15 if i am correct
Answer:
There are limits on the size of structures such as cells that depend on diffusion to interact with the environment.
Explanation:
There are limits on the size of structures such as cells that depend on diffusion to interact with the environment. As cell volume increases, the area of the cell membrane does not keep relative pace. ... So the reason there are no huge cells is that therer is a limit to their size because of the surface area/volume ratio.
Should be A the newer layers are usually on top