When a small populations' gene frequencies are changed drastically by chance alone it is called a genetic drift
Answer:
Either the cell wall or the cell membrane.
Explanation:
All cells have cell membranes which line the outside of the cell, and some cells have cell walls, which also line the outside of the cell. Since all cells have cell membranes I am inclined to believe that the correct answer would be cell membranes.
Answer:
to break down food
Explanation:
and also to absorb nutrients