AMPHIBIANS

2. THEY HAVE A DEVELOPED BRAIN

3. THEY HAVE A WELL-DEVELOPED BODY

4. THEY HAVE MORE ADVANCED NEURONS THAN INVERTEBRATES

5. THEY HAVE HIGHLY DEVELOPED SENSORY
ORGANS

6. THEY CAN READ VERY QUICKLY

7. THESE ANIMALS CAN LEARN FROM THEIR
MISTAKES

8. THEY CAN ADAPT TO MANY HABITATS IN WATER,
LAND AND AIR

9. THEY ARE HETEROTROPHIC AND THEY CAN
MOVE

10. THEY HAVE A RESPIRATORY SYSTEM

11. THEY HAVE A PROTECTIVE CELLULAR SKIN

12. THEY HAVE A BILATERAL SYMMETRY PLAN

13. VERTEBRATES ARE ONLY 2% OF THE ANIMAL
SPECIES

14. HUMAN BEINGS ARE VERTEBRATES

15. THEY CAN ADAPT TO MANY HABITATS IN WATER, LAND AND AIR.

16. THEY ARE HETEROTROPHIC AND THEY CAN MOVE.

17. THEY HAVE A RESPIRATORY SYSTEM.

18. THEY HAVE A PROTECTIVE CELLULAR SKIN.

19. JOEL AND DEIVID

21. CHARACTERISTICS
Amphibians are cold-blooded animals, but instead take on the temperature of
their environment. They have moist skin without scales that absorbs water and
oxygen, and makes them vulnerable to dehydration.
Without moist conditions, their skin dries out
and they die. Therefore, amphibians are
most often found near ponds, marshlands,
swamps and other areas where fresh water
is available.

22. CHARACTERISTICS
• Some amphibians become inactive when
conditions are unfavourable for survival. This
period of inactivity is called hibernation.
Activity resumed when favourable conditions
return.
•
The thin skin of amphibians contains many
glands, among them poison glands that
protect certain species against predators. The
poison from the glands of the brightly
coloured poison-dart frog is particularly toxic
and is used by South American Indians to
coat the tips of their arrows. Some
amphibians protect themselves from enemies
by changing colour to blend in with their
surroundings.

23. LIFE CYCLE
The life cycle of most amphibians begins in water when the female lays
eggs that are fertilized outside of her body. Example: frog