What is the role of deoxyribonucleic acid (dna) in organisms? a. it is the messenger between rna and the protein-synthesis ribosomes. b. it is the controller of substances entering and exiting a cell through the cellular membrane. c. it is the filter of the cell's cytoplasm, keeping the cell free of waste. d. it is the cell's method of storage and transmission of genetic material.

The answer is B

Explanation:

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.