Which of the following terms best describes the grasses in a greenland ecosystem?

Ineed the definitions of all of these words nasap i will give 1o points to whoever awnsers

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.

What is the role of the phospholipid belayer in cellular transport in living cells