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once living things are living things that once lived but dead now
biotic factors.
Biotic Factors
Yes. All fossils were once living things. They are usual 10,000 + years old.
fossils
calcium
The remains of once living things.
once living things are living things that once lived but dead now
once living things are living things that once lived but dead now
A mineral is a solid, inorganic substance with a crystalline structure that is found in nature. They are neither man made nor living and were not formed from once living things.
biotic factors.
Yes.
The remains of once living organism are known as fossils.
Biotic Factors
There are organic rocks derived from once living things, but there are no living rocks.
Well technically, no. Not real cells. But some examples of non-living things with "cells" could be jail (a jail cell) or an excel spreadsheet. I hope this helps!
Yes.