Our body needs ........... from the air to be able to do different activities.
oxygen
water
carbon dioxide gas
The size of chest cavity in exhalation process becomes......
Enlarges in size .
narrow.
stay the same size .
A process by which the air rich in oxygengas enters the lungs through the nose is called..................
digestion
inhalation
exhalation
Fish take in water from their.......... and allow water out from their gills.
lungs
nose
mouth
Gills are considered an example of structural adaptation which allow fish to live.
True
False
Inhalation is a process by which the air rich in carbon dioxide gas and water vapor is expelled outside the lungs through the nose.
The products of respiration process are .........
carbon dioxide gas and water vapor.
oxygen gas and water vapor.
Each lung contains ........ which is divided into bronchioles.
alveoli.
bronchus
Pharynx
Fish use .......... to take in oxygen gas and get rid of carbon dioxide gas.
gills
During exhalation process ,the diaphragm muscle contracts and...............
stays in place
moves up
moves down