Cladograms are graphic representations of evolutionary history, which is called . They are sometimes referred to as phylogenetic trees.

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.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

This is so important ugh its 25 points