The main function of the cell membrane is that regulates and monitors the movement of specific substances into and out of the cell, permitting only some substances to move across and not allowing others.
Answer:
We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars. We can then use radioactive age dating in order to date the ages of the surfaces (when the rocks first formed, i.e. when the lava cooled and crystallized). We also have meteorites from asteroids and can date them, too.
Explanation:
Have a great day <3
Answer:
EPA means environmental protection agency
The answers are C and D. Increased drinks to the cell and selecive membrane.
~Deceptiøn
