characteristics of amphibians

1. VERTEBRATES
SERGIO HERNÁN SACRISTÁN

2. CHARACTERISTICS OF VERTEBRATES
 Highly developed brain.
 Developed skeleton with bones and cartilage.

3.  They have an advanced nervous system
 They are adaptable , they can live: in land, sea and air.

4.  They can move and they are heterotrophic (they can´t make
their own food)
 They have a respiratory system made with gills and lungs.

5.  They have a protective celular, skin, fur, feathers and scales.
 They have a bilateral symetry plan

6.  They are only 2 % of all species.
 Humans are vertebrates

7. AMPHIBIANSAMPHIBIANS
NATALIA ALBORNOS
SERGIO HERNÁN
ANA SAN FRUTOS
DIEGO GONZALEZ
ANZELIKA CICIRKO
NATALIA ALBORNOS
SERGIO HERNÁN
ANA SAN FRUTOS
DIEGO GONZALEZ
ANZELIKA CICIRKO

8. Amphibian means living 2 lives: one in water and the
other in land.
They use gills when they live in the sea and lungs when
they live on the land.
They are cold-blooded .They don`t need as much food as
warm-blooded animals.

9. First they breathe water through gills. Then they have
developed lungs.
They can have toxic skin and some can bite: they don`t have nails.
They have short front limbs and long hind limbs.
With five webbed digits.

10. Smooth, moist and sometimes sticky skin.
Soft gel surrounding their eggs.
Normally found in water or in damp places.
They have external fertilizacion.

11. COMIC LIFECOMIC LIFE