Idk the options but it could be genetic variation
Answer:
Explanation:
DescriptionA biological system is a complex network of biologically relevant entities. Biological organization spans several scales and are determined based different structures depending on what the system is. Examples of biological systems at the macro scale are populations of organisms.
Answer:
I think it's (E) but I'm not sure
Air would go through the trachea, then the bronchi, the bronchioles, and then the alveoli.
