Which statement most completely describes the primary role of the cell in a multicellular organism?

A. The combination of chemical functions and genetic material enable the cell and the organism to live, grow, and reproduce.

B. The collection of organelles interact with the environment to protect against environmental contaminants.

C. The internal structures provide shape and support to a variety of living organisms—both unicellular and multicellular.

D. They help scientists classify all living organisms by the types of cells they are made of.

A

Explanation:

Since we know that the multicellular organism has the basic roles of living,growing and reproducing its genetic matieral enables it to do each of the following.

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many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: