Answer:
a
Explanation:
the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin
The answer u r looking for is- thylakoids. ;)
There is no answer that is right except for C. Natural Selection.
Genetic Recombination doesn't change gene frequency;nor does migration. (Unless it's local)
Mutation could be the answer, but since mutations are too rare to really power Evolution, the only logical answer is Natural Selection.
The answer is c, because a compound is two substances combined chemically and a mixture is not
Answer: Your answer is C!
Explanation:
Because of the 8 electrons in the outermost shell, the maximum number they can have, the elements are very stable and rarely react with other substances.
