List the three reactants of photosynthesis represented by the letter a in the diagram.

Which of the following is not a defining characteristic of plants?

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids