<span>A. atoms.
Ecology is the study of the organisms, the environment and their interaction.
</span>As living organisms in the biotic environment, human beings need food, water and resources in order to survive and thus, it is used in trading, buying and selling of the goods, where economics function. It also applies the supply and demand approach and uses strategy in how to maintain and innovate resources. <span> </span>
Answer:
negative feedback helping to maintain homeostasis
Explanation:
When more than one gene controls a trait it is called "<span>define polygenic inheritance".
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Answer:
It uses fewer land and water resources.
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