The answer would be C.
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Answer: ionic, covalent, metallic bonding
Ionic - ionic bond also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
Covalent - occurs when pairs of electrons are shared by atoms.
Metallic - formed between positively charged atoms in which the free electrons are shared among a lattice of cations.
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Answer:
Part D: pilus
Explanation:
Conjugative pili allow for the transfer of DNA between bacteria and thus evolve to be better pathogens.
Honestly, you'd measure all of them but when people talk about cars, A/C units, or anything like that, it would be nitrogen oxide. green house's don't produce as much of a foot print mainly because they house plants which provide oxygen but they are filled with carbon monoxide so if you have any other information that would help but if not, I'd go with A
