Which is an example of chemical energy being transformed into heat energy? A. A bicycle moves forward when a person pedals it.
B. Plants convert energy from the Sun into food.
C. A campfire roasts a marshmallow that is held over the fire.
D. A falling rock heats up as it pushes against the air.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Which type of landforms forms at the plate boundary as a result of divergent stress

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. % babies born at different weights % babies born in that category 6.0 6.5 in 50-555 70-75 80-8511 100-1055 which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and retum save and exit next submit o type here to search