Answer:
A covalent bond.
Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.
Your answer is:
DDT
is a pesticide that influenced society by increasing crop yield, but it also caused human and animal sickness.
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A virus that infects and replicates itself within bacteria.
I believe heterotrophs are organisms that get their energy by eating other organisms. These organisms are also called predators