D is the answer! I just had this question and it was right !
Herpes would be one of them
Answer:
The alveolar membrane- is where gas exchange between the blood and the atmosphere takes place. The gas molecules must diffuse across the alveolar epithelium and the capillary endothelium. ... Thus, the alveolar surface (as well as the respiratory bronchioles) have no cilia or mucus layer.
Explanation:
hope it helps =)
Answer:
All the members of one species in a particular area are referred to as a population.
Explanation:
the answer is B hope this helps
