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C - Organic Molecules. Most carbon-based molecules are called organica molecules.

Explanation:

A is wrong because inorganic molecules are non-carbon-based, and carbon based molecules are not ions, so B is wrong too. D is wrong because macromolecules is does have carbon, as every living thing, but macromolecules is not another name for carbon based molecules, Therfore organic molecules is the answer.

C - Organic Molecules. Most carbon-based molecules are called organica molecules.

A is wrong because inorganic molecules are non-carbon-based, and carbon based molecules are not ions, so B is wrong too. D is wrong because macromolecules is does have carbon, as every living thing, but macromolecules is not another name for carbon based molecules, Therefore organic molecules is the answer.

tissue

explanation:

it is actually formed by geoup of cells which is tissue

the titanic would be the correct answer