Since a secondary source is a source written after an event has occurred, I want to say that the answer is A. Hope this helped!<span />
The answer is probably GCU AGA : )
Answer:
mitchondria is powerhouse
Answer:
According to the law of conservation of energy, energy cannot be created or destroyed, although it can be changed from one form to another. KE + PE = constant.
Explanation:
hope this helps! mark me brailyest plzz:D
In small intestine millions of micro villi are present for greater absorbption of digested food.