(4) organic catalysts
The job of catalysts in chemical reactions is to make the reaction go faster by lowering the amount of energy needed to activate the reaction. If less energy is needed for the reaction to occur, then the reaction can go faster because a large energy build-up is not needed.
C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
Answer:
They have the same concentration.
Explanation:
Isotonic, by definition, means that the two solutions are of equal concentration
