(07.02 mc) what would happen if the valves separating the chambers in a person's heart did not close?

This is called valve stenosis or narrowing. This can put extra strain on your heart, making it pump harder to force the blood past the narrowing. If the valve does not close properly, it will allow blood to leak backwards. This is called valve incompetence or regurgitation or a leaky valve.

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

i believe the answer is a or 1