Dunno how to do this. Help

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.

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?