Which of the following is a need of most plants?
a. to capture sunlight to perform photosynthesis
b. to release carbon dioxide to the environment
c. to take up oxygen from the environment
d. to release water through their leaves

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

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.

How does photosynthesis show the conservation of mass and energy?