During the duplication of dna, in what part of the cell are new strands synthesized from a supply of nucleotides?

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is