Answer:
The cell membrane (also called the phospholipid bilayer or the plasma membrane) is one of the most important structures a cell has. If you think of the cell as a really popular nightclub, the membrane is the bouncer. It decides what enters and exits the cell.
Answer:
D
Explanation:
a statement that can be tested through a scientific investigation
A, scientists had to convert information from amino acids to nucleic acids.
<em>here is the answer ,, you can make a decay curve like this example..</em>
Answer:
D. Rounded grains cemented together by dissolved mineral.
