Animal cells make up the entire animal. Every thing on earth is made up of cells.
each animal cell, (including our own cells) is important because each cell has a certain job for everything going around in your body. if u didnt have cells you wouldn't be able to see, smell, hear,...
all cells in an animal cell is important they all function together to make the animal cell properly function
it keeps the organelles in place.
Mitochondria process energy for the cell.