What specific phase of the cell cycle do cells copy their dna?

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above