Answer:
it is summer and north America
Aminos acids are used to build proteins
Answer:
Mitochondria
Explanation:
Mitochondria are the power houses of the cells that produce ATP during Electron transport chain.
the mass number or mass number is the sum of the number of protons and the number of neutrons in the nucleus of an atom. It is symbolized by the letter A (the use of this letter comes from the German Atomgewicht, which means atomic weight, although they are different concepts that should not be confused).
