Question

when an animal eats food, its digestion system breaks starches down into ______ molecules.
o methane
o lipid
o oxygen
o glucose

Explanation:

Starch is a polysaccharide. During digestion in animals, enzymes break down starch into its monomer units. Glucose is the monomer of starch. Methane is a hydrocarbon gas, lipid is a different class of biomolecule, and oxygen is a gas not related to starch breakdown in this context.

Answer:

D. glucose