Substance X was isolated in a urine sample, but it is too big to pass through the glomerular filtration membrane. How is this possible

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

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give