1. Animals

2. Vertebrates Invertebrates
Characteristics Characteristics
• An internal skeleton • An external skeleton
articulated o exoskeleton.
• A spine or backbone • No bones or spines or
that supports the body cranium
• A cranium that • Legs, wings, simetric
protects the brain body or antennaes
• Legs, wings or fins
They are classified into They are classified into
five gropus six groups

3. Classification
Vertebrates Invertebrat
es
1. Mammals 1. Arthropods
2. Fish 2. Mollucs
3. Amphibian 3. Worms
4. Echinoderms
s
5. Cnidarians
4. Reptiles
6. Sponges
5. Birds

4. Mammals
• Viviparous
• Mother’s milk
• Hair or fur
• Four legs
• Fins
• Warm- blooded

7. Fish
• Oviparous
• Fins
• Bony scales
• Gills
• Lateral line

10. Birds
• Oviparous
• Wings
• Feathers
• Constant body temperature
• Beak
• Lungs
• Nests

12. Reptiles
• Oviparous
• Cold- blooded
• Scales
• Four legs or none
• Limbs

14. Amphibians
• Oviparous
• Skin: moist and slimy
• Four legs
• Breathe through skin and lungs
• Metamorphosis

16. Arthropods
• Exoskeleton
• Crustaceans : ten legs
• Arachnids : eight legs
• Myriapods : many legs and long
body
• Insects: six jointed legs

19. Molluscs
• Moist body
• Protected by a shell
• In water
• On land
• Gastropods
• Bivalves: two valves
• Cephalopods: eigth to ten tentacles

24. Worms
• Long body
• No legs
• In water
• On land
• By wriggling

26. Echinoderms
• Radial simetry
• Hard plates under their
skin
• Spines ( some of them)

28. Cnidarians
• Jelly- like body
• Radial simetry
• Soft tentacles
• One open mouth and anus

30. Sponges
• The symplest animal
• Irregular in shape
• Holes on its body
• In water