Which step in the digestive process represents a chemical change in food?

How does the study of genetic disorders such as pku biologists understand normal alleles?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Where can a dna be found in a prokaryotic cell