Answer:
B.
Explanation:
Once we were one big continent, so similarities on coasts of two different continents is evidence of them being once together
The answer is A.
b and c are opinionated and Star signs aren’t scientifically proven.
Answer;
One can infer that membrane transport proteins are required in order for neurons to fire.
Explanation;
Transport proteins are proteins that transport substances across biological membranes. Transport proteins are found within the membrane itself, where they form a channel, or a carrying mechanism, to allow their substrate to pass from one side to the other.
-Transport proteins transport materials such as; ions such as sodium and potassium; sugars such as glucose; proteins and messenger molecules; and many more. In neurons, they play a fundamental role in the functioning of nerve cells. These transporters, a third class of membrane transport proteins, move a wide variety of ions and molecules across cell membranes.
Answer:B. The variety of species in an ecosystem
Explanation:
