Biology answers many questions<span>, </span>but its main focus is<span> how living organisms interact and function.
hope it helped give thanks :)
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Answer:
cellular respiration...that's breathing out of humans
and through human activities like burning of fossil fuels...
Both a and b is an example of population increase of favored organisms.
This might help
Jatropha<span> plant seeds which are very rich in oil</span>
