Answer:
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. ... Movement across a selectively permeable membrane can occur actively or passively. For example, water molecules can move passively through small pores on the membrane.
Explanation:
The forensic scientist can assume that the number of adenine is always equal to the number of thymine, according to the base pair rule. Adenine matches with the other purine pair, thymine because it is the only thing to which it could have a hydrogen bond with.
Answer:
A. The phenotypes that result from having 2 or 4 dark-skin alleles
Explanation:
Answer:
negative feedback inhibition.
It is b density ! Good luck sorry if late
