All of the following are functions of the cell membrane EXCEPT: A. controls what enters and exits the cell
B. provides a flexible barrier for the cell
C. controls all of the cell's activities
D. provides support and structure to the cell

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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preservation because he preserves part of the land and preserves means save

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