Answer:
Proteins can carry nutrients across the plasma membrane. There are also differnet receptros outside the cell that recieve signals as well as inside the cell.
Explanation:
If they were to be no separation <span>of a pair of chromosomes during meiosis resulting in formation of a sperm or ovum with 24 chromosomes instead of 23.</span>
Species could compete for water, food, land, etc.
<span>A law is a theory that has explained a number of observed phenomena, and it has predicted a number of other phenomena which may as yet be unobserved.
In that sense, a law is a theory that has not yet been proven wrong or given rise to any contradictions.
A theory is just a theory until it has been proven true by experiments and observation</span>
