Is a frogs path of blood flow similar to humans

No, because

Explanation:

frogs have a systemic circuit, which pumps oxygenated blood throughout the body. The pulmonary circuit moves blood to the lungs to pick up oxygen. Frogs also have a pulmocutaneous circuit, where deoxygenated blood is transported to the skin to pick up oxygen and undergo gas exchange.

littering streams           is the answer

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