I'm not entirely sure on this one... But I think it's 1. cell division helps animals repair old cells..
like please
Answer:
Negative
Explanation:
There are more electrons (negative charge) than there are protons (positive charge).
It would be generation 5 in which there will be almost 100% non-singing females if there are no changes in the birds’ environment and interactions
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.