Question

Why does our body need new cells every day

Answer 1

Answer:-

We need to continuously make new skin cells to replace the skin cells we lose. ... That means we lose around 50 million cells every day. This is a lot of skin cells to replace, making cell division in skin cells is so important. Other cells, like nerve and brain cells, divide much less often.

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Answer 2

Explanation:

When we are adults many cells mature and become specialised for their particular job in the body. So they don't make copies of themselves (reproduce) so often. But some cells, such as skin cells or blood cells are dividing all the time. When cells become damaged or die the body makes new cells to replace them.