A nucleotide consists of a nitrogenous base, along with - O a sugar and phosphate.
O a phosphate.
O a sugar.
O a ribosome and phosphate.

What is a coast of using technology to transport water? a. cities can be built in otherwise uninhabitable areas. b. crops can be irrigated and grown in new areas. c. floods can be averted in flood-prone areas. d. freshwater supplies can be depleted in an area.

How does the nervous system affect the excretory system?

Which of these is not a nucleotide base found in dna?