Muscles which operate without your awareness are: a: voluntary b: involuntary

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.

Scientific evidence is most likely to be consistent if it is based on data from

Which type of neuron stimulates muscles to contract?