An abiotic factor that determines which organisms can exist in a marine environment is the A. amount of atmospheric moisture and variety of consumers.
B. amount of carbon dioxide and number of decomposers.
C. amount of oxygen and concentration of salt.
D. amount of algae and range of temperature.

answer; ///(b) it is composed of four protein chains and four heme groups;

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

check for the pregnancy rating of drug. if its class c or d see if other alternatives