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Actually what happens is that the T cells are made in the bone and then is transported to the thymus where it gets matured. This maturing process must be gone through in order for the T cells to do its job.
You Must mean White blood cells. White blood cells kill bacteria by first engulfing them, this process i believe is called phagocytocis. They literally eat the bacteria and digest it.
No - iron does not create them. However red blood cells must contain iron so it is needed for the cells to be formed.
It must be isotonic
The number of blood cells in animals varies depending on the species and size of the animal. In general, mammals have billions to trillions of blood cells. Humans, for example, are estimated to have around 20-30 trillion red blood cells and about 2-3 trillion white blood cells in their bodies.
Red Blood Cells lack a nucleus. This means they cannot divide. They must be constantly manufactured in the bone marrow to replace those that die.
Kind of cell that does not have a nucleus?
Bacteria is constantly forming on the outer layer of your skin. It is looking for a way to invade your body. Your body reacts by simply throwing away the outer layer of your skin. It does that a cell at a time, but it does it constantly. Those cells must be replaced. To do that, the cells underneath must constantly reproduce and create new skin cells.
Actually what happens is that the T cells are made in the bone and then is transported to the thymus where it gets matured. This maturing process must be gone through in order for the T cells to do its job.
You Must mean White blood cells. White blood cells kill bacteria by first engulfing them, this process i believe is called phagocytocis. They literally eat the bacteria and digest it.
No - iron does not create them. However red blood cells must contain iron so it is needed for the cells to be formed.
No. Endocrine cells are ductless and must release their substances to the blood vessels.
Muscle cells,Skin cells, and white blood cells.
It must be isotonic
Solar panels must be constantly exposed to light to produce electricity
The number of blood cells in animals varies depending on the species and size of the animal. In general, mammals have billions to trillions of blood cells. Humans, for example, are estimated to have around 20-30 trillion red blood cells and about 2-3 trillion white blood cells in their bodies.
Cells in the blood do not provide nutrients to the other cells of the body. The nutrients are in the blood plasma (liquid). These nutrient diffuse through the vessel wall and travel to the bodies cells in the interstitial fluid (the fluid around individual cells). The epidermis does not have blood vessel running through it, so the nutrient must pass from the dermis layer of cells.