They are called ENZYMES.
Enzymes speed up the rate at which the digestion process occur so that the nutrients in the food can be absorbed by the body and used for the development of the body.
CN- the minus goes on top but that should be correct!!
ANSWER:
1. Cellular level aka cells
2. Organelle
3. Organs an example could be the heart
4. Organism
5. Population
6. Abiotic factors? I’m not sure on this one
7. Biosphere
