What type of reaction is 2mg + 2hcl > 2mgcl + h2 + heat?
a. anabolic reaction
b. catabolic reaction
c. endothermic reaction
d. exothermic reaction

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down