Through what body part do Chloe and Nurb enter to begin their respiratory system journey?

Classify the structures as homologous or analogous, depending on their structure and function.

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

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