Epistasis is the phenomenon where one pair of gene interacts
with a second pair to control its expression by masking, suppressing or
modifying it. <span>The
term meant that a different gene masks the phenotypic effect of another gene. Moreover,
epistasis has a large influence on the evolution of phenotypic traits. </span>
Answer:.3.The hormone is released into the bloodstream where it can be transported to all cells with the correct receptors.
Explanation:
The mode of transportation of hormones is bloodstream.They used the medium to reach the target cells.This makes the hormonal effects relatively slower compare to eletrical transmission in the Nervous system.
Answer:
This is a question of the ration surface-volume. It is more efficient a shape that has more surface than volume
Explanation:
Imagine the shape of a mouse and an elephant in a cold environment. Who will lose heat faster? The answer is the mouse, for its volume (which is small compared to the elephant), the surface for which it can lose heat is very large. In contrast, the surface for which the elephant can lose heat is very small for its volume.
The same happens with nutrients if you have a great volume and a small surface is more difficult to exchange them.