The directional selection is the type of natural selection, in which an extreme phenotype is promoted due to the changes in the environment. This causes the changes in the allele frequency and the shifting of the phenotype in a particular direction. In this condition, one of the extreme phenotypes are promoted, which result in the shifting of genotypic frequency either of the homozygous characteristics.
A because it explains the differences
As water evaporates off salt water, the water gets saltier, and dissolved oxygen in the water reduces.
<h3>Dissolved oxygen and solute concentration</h3>
There is an inverse relationship between the dissolved oxygen in water and the concentration of solute.
Thus, as water evaporates off the tidal pool, available free oxygen decreases accordingly just as the water becomes more salty.
In other words, the more water in a solution, the more free oxygen, and vice versa.
More on dissolved oxygen and water can be found here: brainly.com/question/26113345
Answer:
The theory of E.O. Wilson's theory of Island Biogeography was originally developed as island biogeography, to explain species richness of actual islands, surrounded by water.
It proposes that the number of species found in an undisturbed environment is determined by immigration and emigration. According to him, the species richness will be the same if this island will have an equal number of the immigration and extinction or emigration of species.
Answer:
(x-9)(x-3)
Explanation:
find out what adds to -12 and also multiplies to get 27
-9 times -3 equals 27 and -9 plus +3 equals -12
