Well, depending on how long the migration is, many of the animals (mainly birds) could get sick and die, lowering the population. They could be shot by hunters, lowering the population. The children of the population could get left behind and lose their way, lowering the population. I'm not entirely sure how the population could grow other than them finding and staying with another group of their own kind. hope I was helpful! :)
How does molecular size effect to the permeability of the membrane to that molecules?
It is known as the Cell Membrane. It comprises of a lipid bilayer with installed proteins. The essential capacity of the cell film is to shield the cell from its environment. The cell layer controls the development of substances all through cells and organelles. Along these lines, it is specifically porous to particles and natural atoms.
The answer is most likely D, since both eye colors are dominant.
