Dna and rna are both a. made up of nucleotides and carry molecules from one end of a cell to another b. monomers of protein molecules that provide structure to a cell’s nuclear membrane c. protein molecules that carry the unique genetic information of an organism d. molecules that contain genetic information and are made up of nucleotides

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human impact on the environment can be seen in the deterioration of the !

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called