Answer:
Balancing selection
Explanation:
Balancing selection is a type of natiral selection that maintains different alleles (i.e. sickle cell allele and normal allele) at frequencies larger than expected. This can happen for example, when the heterozygotes for the alleles under consideration have a higher fitness than the homozygote -as is the case of the sickle cell anemia-.
A, meningeal blood vessels is the correct answer.
Answer:
Air Pressure
Explanation:
The weight of the air that pushes down on us is air pressure, and air pressure changes depending on where you are.
<span>I believe the correct answer is option A. Plant's roots grow longer as a result of primary growth. The increase in length of the plant and its roots is referred to as primary growth. It is a result of cell division in the shoot. Hope this answers the question.</span>
Answer:
Lady bug
Insects go through metamorphosis, not sharks, cows, or fish.
Hope this helps :)