The answer is A
Mucus protects the stomach lining from digestive secretions
<span>A: Some energy will be used to do work and some will be lost as heat.</span>
lysosomes and vacuoles both are cell organelles that are membrane bound, and used for storage.
lysosomes contain/ store digestive enzymes and also known as suicidal bags.
vacuoles contain/ store undigested/ waste materials
