Photosynthesis involves chemical changes to three elements: carbon, oxygen, and hydrogen. which of the following describes the chemical change to carbon?

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic.

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?

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