WILL GIVE BRAINLIEST A functional group is a specific group of bonded atoms that always has the same chemical properties and always reacts in the same way.

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image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

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the answer is "a.) well–developed vascular system."

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