Answer:
A) 1000
Most viruses are 1000 times smaller than the average cell
The oxygen molecules moves through the nostrils, pharynx, trachea, bronchus, smaller and smaller branches of the bronchial tree, and then into the alveolus.
Answer:
Does the specimen have spots on its body?
Does the specimen have more than three gills?
Does the specimen often eat shrimp instead of other fish?
Explanation:
those are the answeres exept the last one
Cells create tissues which create organs which make up systems so i believe the answer is D i hope this helps :)
Nitrogen represents nearly 70% of air in the atmosphere <span />