2. factors that may affect variables are called
a. experiments.
b. hypotheses.
c. theories.
d. variables.

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.