Complete the following sentence. Nitrous oxide and were the first two substances used in anesthesia.

chloride.

Explanation:

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.

explanation:

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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