What is the purpose of the networked connections of smooth muscle?

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.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

How can an organ, such as the lungs, work for multiple body systems?