Click Advance year 10 times. On the DATA tab, look at the bar graph and the Line graph. Do the populations change very much, are they in the equilibrium?

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.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?