Alveoli are part of the reparation system found in the lungs. They are covered in capillaries. In Alveoli, oxygen diffuses from the air into the blood vessels surrounding the alveoli and carbon dioxide from the body diffuses from blood into the alveoli’s air spaces. Alveoli clump together and form sacs.
Answer:
True
Explanation:
Since it's a passive way of transport, it is in favor of the concentration gradient and does not need to use ATP.
any crop grown to be sold on the commodities market.
Answer:
c.Racquetball
because the lighter the object the more force it needs to go
Answer:
true
Explanation:
soil=plants humans need these for food
minerals= help body growth
rock= home base of minerals and used for homes sometimes