Answer:
They speed up chemical reactions. Without them you wouldn't be alive. They break down macromolecules, and also lower the amount of energy needed for a chemical reaction to happen.
Its 3 of the same molecule.
Answer:
They could all become some sort of food for people.
Explanation: Hope this helps! :)
Answer:
The cell pictured in the diagram is a plant cell because there is are chloroplasts. Chloroplasts are located in plant cells and not in animal cells. Chloroplasts are where photosynthesis occurs, and photosynthesis does not occur in animals.
Answer:
an increase in the temperature will increase the average kinetic energy of the molecules which causes the molecules to move faster
