C) matter is changed into various forms but the total quantity remains unchanged.
I would say Australopithecus because so far, its skull is the one that resembles the most that of a human's.
A. social age
b. chronological age
c. psychological age
<span>d. biological age
Its D, biological age.</span>
Answer:
first question: 3. osmosis is a kind of diffusion that involves the movement of water
2nd question: 1. it allows carbon dioxide to move in and out of the cell
Explanation: