Biotic factors in any ecosystem include . A.) wind, weather, and plants
B.)air, water, soil, and temperature
C.)plants and animals
D.) All of the above

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

What advantages does a pedigree have over a written passage?

Match each symbol with its description.