Light reactions happens in the thylakoid membrane, and the calvin cycle happens in the stroma. What happens to water molecules in the light reactions? It's broken apart and the electrons go to photosystem II. ... Then they pump H+ into the thylakoids, and are used to make ATP out of ADP.
The changes. You are measuring change. It could be Temperature, height, or any other form.
Probably moose or deer meat the others captain bad stuff and some berry and mushrooms can be poisonous. We eat elk and deer meat a lot!
Upper epidermis. The cuticle on upper epidrrmal layer prevents excessive water loss