The direct source of energy for the production of oxygen by phytoplankton is A. sunlight
B. heat
C. shrimp
D. water

What is histamine and what is its role in allergic reactions

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

Which group of molecules are targeted by the kinases in order to control this movement