How y’all can trees grow to be in the rain forest?

According to this food web which of the following would be considered primary consumers

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 of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?