An abiotic factor is a part of the environment that is not living and has never

Ecology is the study of how living organisms interact with each other and with their environment. Abiotic factors are the parts of the environment that have never been alive, while biotic factors are the parts of the environment that are alive, or were alive and then died

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c genetic engineering

i think the miocene epoch spans the time from 23 million to 12 million years ago.