Oxygen is bonded to and transported by (choose all that are correct): plasma hemoglobin leukocytes an iron bearing protein antibodies platelets

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?