Post on 19-Jan-2016
CLASSIFICATION
ANIMALS
VERTEBRATES• HAVE A SKELETON WITH
bones, SPINAL COLUMN AND SKULL
INVERTEBRATES• DON´T HAVE INNER
SKELETON WITH SPINAL COLUMN AND SKULL.THEY DON´T HAVE BONES.
• ARE COMPOSED BY :
MAMMALS
• THE MAJORITY ARE LAND ANIMALS
• THEY BREATHE OXYGEN USING THEIR LUNGS.
• THEY GIVE BIRTH TOLIVE YOUNG VIVIPAROUS• THEY NURSE THEIR YOUNG
WITH MILK
• THEIR SKIN IS COVERED WITH FUR OR HAIR
EXCEPTIONS THE WHALETHE DOLPHIN
VERTEBRATES
HOW DO MAMMALS MOVE?
MOST USE LIMBS
• THEY HAVE FOUR LEGS• THEY MOVE ON THE LAND• HUMANS MOVE USING
TWO LIMBS; OUR LEGS, BUT WE USE ALSO THE ARMS
AQUATIC MAMMALS USE FINS
• SOME MAMMALS USE WINGS
WHAT DO MAMMALS EAT?CARNIVORES HERVIBORES OMNIVORES
HAVE POINTED AND CANINE TEETH FOR TEARING THE MEAT
Lion´s skull
HAVE SHARP TEETH AND MANY MOLARS FOR CHEWING THE
VEGETABLES
Deer´s skull
HAVE A MIXTURE OF POINTED TEETH,
SHARP TEETH AND MOLARS
Human´s skull
• OVIPAROUS: THEIR YOUNG HATCH FROM EGGS
• THEY LIVE IN WATER• THEY BREATHE USING
THEIR GILLS
• THEIR LIMBS ARE FINS • THEIR SKIN IS COVERED BY
SCALES
FISH
• OVIPAROUS THEIR YOUNG HATCH FROM EGGS
• THEY LIVE IN WATER AND LAND• THEY BREATHE THROUGH GILLS
(TADPOLES) AND LUNGS (FROGS)
• TADPOLES MOVE WITH A FIN FROGS WITH LEGS.
• THEY HAVE BARE SKIN(they dont have hair and Fur)
AMPHIBIANS
REPTILES• THEY ARE TERRESTRIAL• THEY BREATHE THROUGH
LUNGS
• THEY COME FROM EGGS• THE MAJORITY HAVE FOUR
LEGS• ARE COVERED BY SCALES
BIRDS• THEY ARE TERRESTRIAL• THEY BREATHE THROUGH
LUNGS
• THEY COME FROM EGGS• THEY HAVE TWO WINGS,
WHICH USE TO FLY( THERE ARE EXCEPTIONS)
• THEIR SKIN IS COVERED WITH FEATHERS