Aplants response to light is known as
a. phototropism.
b. gravitropism.
c. thigmatropism.
d. heliotropism.

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.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

About __ of the mass of the cell is water