Use the drop-down menus to complete each of the sentences. Isotopes behave similarly in
involve only a rearrangement of electrons, and do not
involve changes in protons or neutrons.
In
a large amount of energy is released or absorbed.
New elements can be formed as a result of
Exothermic and endothermic reactions can occur during
DONE

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

i'm assuming that the correct answer is indeed the first one/ "a"..

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.