Without the hormone cholecystokinin, the body would have trouble: Responses breaking down and absorbing fat molecules. breaking down and absorbing fat molecules. growing hair, eyelashes, and fingernails. growing hair, eyelashes, and fingernails. fighting off bacterial infections . fighting off bacterial infections . producing enough red blood cells.

breaking down and absorbing fat molecules.

Without the hormone cholecystokinin, the body would have trouble:

1. Breaking down and absorbing fat molecules.
2. Growing hair, eyelashes, and fingernails.
3. Fighting off bacterial infections.
4. Producing enough red blood cells.