Answer: Depends on what are you trying to do , a project ?
Explanation:
I believe the answer is A. because once the allele changes the future populations will change along with it... hope i helped !
The answer is true.
Transitional epithelium of the urinary bladder (urothelium) is a type of stratified (multilayered) epithelium. Layers of epithelial cells in this tissue can contract and expand in order to adapt to the degree of distension needed.
Layer of basal cells (basal layer) consists of cuboidal or columnar cells. Superficial layer, on the other hand, can vary depending on the degree of distension: so, when the bladder is not stretched, the cells are cuboid, but when the bladder is filled with urine, stretched, the cells are squamous.
<span>Sodium does the transmissions of nerve impulses around the body.</span>
