英文作答,关于cellKevin is a healthy boy and a lot of cells are worn out and rubbed off from his skin every day.Explain why his skin can still function well.
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英文作答,关于cellKevin is a healthy boy and a lot of cells are worn out and rubbed off from his skin every day.Explain why his skin can still function well.
英文作答,关于cell
Kevin is a healthy boy and a lot of cells are worn out and rubbed off from his skin every day.Explain why his skin can still function well.
英文作答,关于cellKevin is a healthy boy and a lot of cells are worn out and rubbed off from his skin every day.Explain why his skin can still function well.
Because when a lot of cells worn out,more new cells grow to form new skin and continue the function.It's a normal phenomenon that some of cells of a healthy person die every.It doern't indicate that person is ill,and it's decided and controled by gene.
because the cell can regeneate to replace the dead cell