Which of the following is true? A.)Only eukaryotes have DNA, while prokaryotes have RNA
B.)All living organisms (including eukaryotes and
prokaryotes) have both DNA and RNA
C.)All living organisms (including eukaryotes and
prokaryotes) have DNA but not RNA
Only prokaryotes have DNA, while eukaryotes have RNA

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Which is one example of a phenotypic change that is not genetic

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.