Correct answer: A). Maintains homeostasis.
Cell transport helps to maintain homeostasis by keeping the conditions inside the body in a normal range in the organism's cells.
Each and every individual cell must maintain homeostasis in order to survive. One of the way by, which cell maintains homeostasis by controlling the movement of a substance across the cell membrane.
Active transport, osmosis, and active transport are the method of cell transport, which help to maintain homeostasis.
competition
source: my biology teacher
Heterozygous
For example we cross AA which is Homozygous Dominant and aa which is recesive
(AA)×(aa)
Aa Aa Aa Aa
So the answer is hetrozygous
The correct answer will be A;
A) The number of protons in the nucleus does not equal the number of neutrons.
A=mass number:
Z=atomic number (= number of protons)
N=number of neutrons:
A=Z+N
If the number of protons in the nucleus is equal the number of neutrons , we would have an even mass number; because Z=N=x; then A=x+x=2x (this is always an even number) but 23 is an odd number, therefore the number of protons in the nucleus does not equal the number of neutrons.