Answer:
akint anwer that because I'm pilipino so Ido not understand
Explanation:
ok comment about me ok
The first one because just think about how light oxygen or air is
The force that attracts all matter to each other is gravity, i believe.
Could be anything that can help represent the cell membrane visually
A scientific model is a claim or a theory that helps explain how a phenomenon works or how it undergoes process. This models provides scientists an understanding of the object or a situation undergoes change and generate certain outcomes or effects.
