Answer:
Alveoli
Explanation:
The smallest branches are called bronchioles and at the end of these are your air sacs (alveoli).
Answer: answer
explain : [One glucose and oxygen ]
Answer:
taking a closer look at the natural world
Explanation:
using prior knowledge is basic common sense. so no.
requiring evidence and thinking logically is following a rule. so no.
following strict rules when using human test subjects. right off the bat, "strict rules" is an immediate no.
taking a closer look at the natural world. that's creative because they look for the answer around them.
By the amount layers the epithelial tissue has