Match the following: a) regulatory t cell b) b cell c) cytotoxic t cell d) t cell e) memory cell 1) quick and efficient response upon secondary exposure to antigen 2) absence results in no immune response 3) responsible for the humoral immune response 4) cancer cells and virus infected body cells 5) or stops the immune response

What are genotypes? what are phenotypes?

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.