Which gases are carried by red blood cells. check all that apply

The correct answer would be oxygen and carbon dioxide.

The main function of Red Blood Cells (RBCs) or erythrocytes is to transport oxygen from the lungs to all cells of the body. In addition, it transports carbon dioxide from cells to the lungs from where it is exhaled out.

RBCs contain iron containing biomolecule termed as hemoglobin. It can bind to oxygen as well as carbon dioxide in a reversible manner. It depends upon the partial pressure of the gases in a cell.

For example, at the alveolar site, the partial pressure of oxygen is high which increases the efficiency of hemoglobin towards oxygen. Oxygen then binds with hemoglobin in a reversible manner to form oxyhemoglobin.

At the cellular site, the partial pressure of carbon dioxide is higher as compared to that of oxygen. Consequently, oxygen is released and hemoglobin binds with carbon dioxide to form carbamino-hemoglobin.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.