Molecules on the outer surface of a microorganism act as

Galaxy whose shape seems different follow no set pattern are classified as

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.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary