PLEASE HURRY IM TIMED! Which describes the role of oxygen in photosynthesis?
It is a reactant, so it is released by the plant.
It is a product, so it is released by the plant.
It is a reactant, so it enters the plant.
It is a product so it enters the plant.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule

What is the most appropriate method of gaining weight (muscle mass)