The document discusses respiration in different animals. Mammals breathe in oxygen through their lungs which passes into their bloodstream, while fishes breathe through gills that absorb oxygen from water. Insects have a simple system of tracheae that transport gases, and amphibians breathe through gills as young but develop lungs when they mature on land. Respiration allows all animals to take in oxygen and release carbon dioxide through different specialized structures.

1. ANIMAL’S
RESPIRATION

2. The exchange of gases inside the
body is
RESPI RATION.
Animals breathe in oxygen and
breathe out carbon dioxide.

3. How do mammals breathe?
 Mammals take in oxygen from the
air.
 It passes into the lungs.
 In the lungs blood carries the
oxygen to the rest of the body.

4. How do fishes breathe?
 Fishes take oxygen from water.
 Water enters the body through the
mouth and leaves through the gills.
 Gills absorbe oxygen from water.
 Carbon dioxide is expelled from the
gills.

5. How do insects breathe?
 They have a very simple respiratory
system.
 They have tiny tubes, called tracheae
in their bodies.
 Tracheae take in oxygen and expell
carbon dioxide.

6. How do amphibians breathe?
When they are young, they are aquatic
animals.
So they breathe through the gills.
During metamorphosis , their gills close and
they develop lungs to breathe.
Baby salamander
Adult salamander

7. Remember:
Respect nature and animals!!
Thank
you!
By: Miss Patricia
2013