Elaborative rehearsal is a memory system that includes contemplating the significance of the term to be recalled, instead of essentially rehashing the word to yourself again and again. For instance, you have to recall the expression "neuron."
The diaphragm ;) it controls breathing. it's what helps your lungs function.
Answer:
The answer is autotrophs
Explanation:
During the early days of the Earths life there was no oxygen but there was plenty of CO2 which the autotrophs took and used as food while discarding the excess which was the oxygen.
Answer:
b) to deliver nutrients and other essential materials to cells
