Explain how biodiversity benefits medicine and agriculture.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

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

Several billion years ago which gas was the least prevailant in the atmosphere