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wedontlikespaces t1_ixlnbah wrote

Because when they're independent cells they are independent but when they're in a tissue they're part of a larger structure, so if that larger structure is damaged the whole tissue becomes nonviable.

If 10% of a heart dies, then the entire heart no longer works.

Going back to the house example, if a structural support beam is one of the 10% of wooden beams that rots, then the whole house is going to fall down. It's not a perfect analogy because obviously there's some bits of wood which are more important than others, but you get the idea.

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