Apatient lost a lot of blood during surgery and his blood pressure dropped from 120/80 to 90/50. describe in detail all possible physiological mechanisms, how the kidneys respond to this change in blood pressure.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

well, i believe that the answer is 2. : 3

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.