Answer:
<h2><u>
directional selection</u></h2>
Explanation:
This type of natural selection is referred to as . In this type of natural selection, either one phenotype is preferred or the other; therefore, there is no equilibrium between the populations of the phenotypes that are present.
Examples of organisms that have undergone directional selection are black bears during the ice ages, African chichlid and sockey salmon.
This process is called “crossing over.”
It will increase genetic diversity in gametes, so option A would be correct I believe !
Answer:
I'm not sure what is unclear but I can try to help...
Explanation:
So the group is the number at the top and is verticle. So H,Li,Na, and K share the same Group, 1.
The period is the number at the side and is horizontal. Soo H and He are Period 1.
Now using this information we can find the specifics of each element.
Chlorine, for example, is Group 17A and Period 3 because it matches those.
Let me know if you need further explanation :)
Answer:
D. Mitochondria are large enough to be seen with modern light microscopy, and can occupy as much as 20% of cytoplasmic volume.
Explanation:
Mitochondria are oval shaped organelles responsible for cellular respiration.
One of their defining characteristics
is the influx of protons from the mitochondrial membrane that enables ATP synthesis.
Mitochondria are known as the power house of the cell.
Structurally, mitochondria are spherocylindrical with a length of 2 microns and a diameter of 1 micron.
