Nucleic acids are biological polymers that are comprised of nucleotide monomers covalently bonded together. The picture above shows two monomer units of a nucleic acid chain What are the components that make up each nucleotide
monomer?

A. Glucose, a phosphate group, and an amino acid.

B. Glucose, a phosphate group, and a nitrogenous base.

C. A five carbon sugar, a phosphate group, and a nitrogenous base.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Apart of an ecosystem that can restrict the growth of a population is referred to as

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi