High on this mountain top, we see plants and animals. When winter comes to the mountain, many of the animals cannot find food. Because of this, many animals

A) run away.

B) hibernate.

C) become extinct.

D) find a new place to live.

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

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.