1. DEPENDING ON WHERE THEY LIVE
1.1. WILD
1.1.1. THEY LIVE IN FREEDOM
1.2. DOMESTIC
1.2.1. THEY CAN LIVE NEAR PEOPLE
2. DEPENDING ON WHAT THEY EAT
2.1. CARNIVORES
2.1.1. THEY EAT ONLY MEAT
2.2. HERBIVORES
2.2.1. THEY EAT ONLY PLANTS
2.3. OMNIVORES
2.3.1. THEY EAT MEAT,FISH AND PLANTS
3. VERTEBRATES
3.1. THEY HAVE A SKELETON
3.2. THEY ARE CLASSIFIED INTO 5 GROUPS
3.2.1. AMPHIBIANS
3.2.1.1. WHEN THEY ARE BODIES THEY ARE CALLED TADPOLES AND AQUATIC LARVAE. TADPOLES HAVE GILLS AND MOVE ABOUT WITH FINS. ADULT AMPHIBIANS BREATH THROUGH LUNGS AND HAVE LIMBS AND SOME HAVE TAIL. THEY ARE OVIPAROUS. THEY ARE COVERED WITH BARE SKIN. ADULTS LIVE ON LAND. E.G: FROG.
3.2.2. MAMMALS
3.2.2.1. They have a skeleton. They are vertebrates. They are warm-blooded. They breathe through their lungs. Their bodies are covered with hair or fur. Most mammals grow inside their mother’s womb until they are born. They are viviparous. When mammals are born, they are fed on their mothers’ milk. They take care of their young for a long time. They can walk, (bears), fly, (bats) or swim, (whales).
3.2.3. FISH
3.2.3.1. THEY HAVE A SKELETON. THEY ARE VERTEBRETE THEY ARE COLD-BLOODED. TAKE OXYGEN I THE AIR AND IN THE WATER WITH GILLS. ARE COVERED WITH SCALES.. THEY ARE OVIPAROUS. THEY TAKE CARE OF THEMSHELVES WHEN THEY ARE HATHED.THEY HEVE TAILS AND FINS TO SWIM.. SOME LIVE ON SALT WATER BUT OTHER LIVE ON FRESH WATER.
3.2.4. REPTILES
3.2.4.1. THEY HAVE A ESKELETON.THEY ARE VERTEBRATES. THEY AR ECOLD-BLOODED. THEY BREATHE WITH THEIR LUNGS. THEIR BODIES ARE COVERED IN SCALES: COCODRILE. SOME HAVE A SHELL:TORTOISE. SOME HAVE LEGS:LIZARD OTHERS SLITHERS AROUND THE GROUND: SNAKE THEY HART FROM EGGS. THEY ARE OVIPAROUS. THEY TAKE CARE FROM HER SHELVES. MOST OF THEM LIVE ON LAN,DBUT SOMNE OF THEM SPEND THEIR LIVE IN WATER. THEY USE HEAT FROMTHE SUN TO WARMTHEIR BODIES.
3.2.5. BIRDS
3.2.5.1. THEY ARE WARM-BLOODED . THEY BREATHE THROUGHT THEIR LUNGS. THEIR BODIES ARE COVERED IN FEATHERS. THEY HAVE BEAK , 2 LEGS, 2 WINGS AND A TAIL. THEY HATCH FROM EGG . THEY ARE OVIPAROUS. THEY TAKE CARE OF THEIR OFFSPRING UNTIL THEY ARE OLD ENOUGH TO LEAVE THE NEST.
3.2.5.1.1. EXAMPLE: EAGLE
4. INVERTEBRATES
4.1. THEY HAVE NO SKELETON
4.2. THEY ARE CLASSIFIED INTO 6 GROUPS
4.2.1. WORMS
4.2.1.1. EXAMPLES:EARTHWORMS AND TAPEWORMS
4.2.2. CNIDARIANS
4.2.2.1. THEY ARE INVERTEBRATE. THEY ARE JELLY LIKE BODY. THEY HAVE TENTACLES THAT STING. THEY HAVE RADIAL. CAN MOVE FROELY LIKE JELLY FISH, SOME OTHERS ARE ATTACHED LIKE ANEMORES OR CORALS.
4.2.3. ECHINADERMS
4.2.3.1. THEY HAVE 5 WAY SYMMETRY. ARE COVERED BY A SKELETON OF HARD PLATES. ARE MARINE ANIMALS.
4.2.3.1.1. EXAMPLES ARE JELLYFISH, CORAL AND ANEMONE.
4.2.4. ARTHROPODS
4.2.4.1. ARTICULATED EXOSKELETON COVERED WIHT PLATES. THEY MOULT THE EXOSKELETON. SENSE ORGANS WELL DEVELOPED WITH ANTENNAE AND EYES. ARTHROPODS CAN BE:
4.2.4.1.1. INSETS: BODY DIVIDED IN 3 PARTS: BODY,THORAX AND ABDOMEN. HAVE 6 LEGS. HEAD HAS 2 ANTENNAE, 2 EYES AND A MOUTH.
4.2.4.1.2. ARACHNIDS: BODY DIVIDED IN 2 PARTS: ABDOMEN AND CEPHALOTHORAX. HAVE 8 LEGS
4.2.4.1.3. CRUSTACEANS: BODY DIVIDED IN 2 PARTS: ABDOMEN AND CEPHALOTHORAX. HAVE 10 LEGS , 2 PAIRS OF ANTENNAE AND THE EYES ARE PEDICEL
4.2.4.1.4. MYRIAPODS: SEGMENTED BODY WHITH 2 PAIRS OF LEGS IN EACH SEGMENT. HEAD HAD A PAIR OF SHORT ANTENNAE.
4.2.4.1.5. BIVALVES: SHELL DIVIDED INTO 2 VOLVES. SOFT BODY WITH APPARENT NO VALVES. SOME ARE ATTACHED
4.2.5. SPONGES
4.2.5.1. THEY HAVE NO SYMMETRY. tHEY LIVE ATHACHED TO SOMETHING.
4.2.6. MOLLUSCS
4.2.6.1. HAVE SOFT BODIES AND SOME ARE PROTECTED BYA SHELL. MOST ARE AQUATIC.
4.2.6.1.1. GASTROPODS
4.2.6.1.2. BIVALVES
4.2.6.1.3. CEPHALOPODS