Not completely sure, I do know that they divide so they don't get too big.
There are trillions of cells in the body so, they have to be extremely small to fit.
So that they can flow to different parts of your body quickly
Your body is made of cells. They are not fitted inside a rubber tube that so happens to be in the shape of your body. The cells work together to create tissues, which form organs, and these form organ systems.
Because cells in a human body are really small that you cant see them.
The common house fly has millions of cells in its entire body. It is amazing how such a small creature has so many cells.
Cells are the smallest living things inside bodies, so an animal cell is pretty small, for there are millions of cells in a body.
These are called capillaries. They are very tiny so that oxygen and nutrients can pass easily into the cells and wastes can leave.
the digestive cells are the small particles in our body. know we have 200,000 cells in our body that give us energy keep us alive.
One reason is that cells are so small,is because they are to small to be seen by the naked eye.
The smallest parts of the human body are contained in the cells.
blood cells
Small and red, rich in haemoglobin, carry oxygenated blood to tissues of the body