People with lactose intolerance do not have enough a. lactose b. lactase c. glucose d. fructose

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

Wich level of organization includes all the other levels or organizations

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