To create remadies and such to help with sicknesses
Answer:
by cooking animal products
Answer:
The tricuspid and mitral valves lie between the atria and ventricles. The aortic and pulmonic valves lie between the ventricles and the major blood vessels leaving the heart. The heart valves work the same way as one-way valves in the plumbing of your home. They prevent blood from flowing in the wrong direction
Explanation:
maybe o valves
read this passage
During metabolism, carbohydrate are burned by cells to produce energy
