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Jumaat, 2 November 2012

Classification of animals

Animals
-Invertebrates (without backbones )
-Vertebrates ( with backbones )
→Fishes
→Reptiles
→Mammals
→Amphibians
→Birds

Invertebrates

★Animals with jointed legs

☆3 pairs of legs



-Grasshopper-


-Butterflies-

★4 pairs of legs


-Scorpion-


-Spider-

★More than 4 pairs of legs


-Crab-


-Centipedes-

★Animals without jointed legs

☆Worm-like


-Snails-


-Flatworms-

☆Non-worm like


-Jellyfish-


-Sea anemones-

Vertebrates

★Fish
Habitat : Water
-Hard and slimy scales
-Have fins and tails
-Cold-blooded
-Breathe through gills
-External fertilisation
There are some example :


-Puffer fish-


-Shark-


-Stingray-

★Reptiles
Habitat : Land and water
-Dry & Scaly skins
-Breathe through lungs
-Cold-blooded
-Internal fertilisation
There are some example : 


-Tortoise-


-Crocodile-


-Snake-

★Amphibians
Habitat : Land and water
-Loose and moist skins
-Cold-blooded
-Young amphibians breathe through gills whereas adults breathe through lungs
-External fertilisation
There are some example : 


-Frog-


-Toad-


-Salamander-

★Birds
Habitat : land
-Animals with feather
-Have breaks and wings
-Warm-blooded
-Breathe with theirs lungs
-Internal fertilisation
-Have hard shells
There are some example :


-Penguin-


-Flamingo-


-Pigeon-

★Mammals
Habitat : land but some such as dolphins and whales live in water
-Bodies covered with hair or fur
-Breathe through lungs
-Internal fertilisation
-Young mammals feed on milk produced in the mammary glands
There are some example :


-Dolphin-


-Duck-billed playtypus-


-Cow-

The videos are about of animals.
Eg : 


1. video


2. video



Exercise
Fill in the blanks with notes which above.
(a) Animals that have backbones are called ______________ and animals that do not have backbones are called _______________.
(b) The groups of animals living in water and breathe by means of gills is the ____________.
(c) The groups of animals living on land are ____________ and ____________.
(d) The groups of animals living in water and on land are ____________ and ____________.
(e) Amphibians, fish and reptiles are ________________ animals.
(f) Mammals and birds are ___________________ animals.


Write the correct answer.

Characteristics         Fish         Amphibians         Reptiles         Birds         Mammals

Habitats 
(Land/ water)

Body covered by
(scales/ moist skins/ 
hard dry scales/ 
feathers/ fur/ hair)

Types of blood
(warm-blooded/ cold-blooded)

Breath through
(gills/ lungs)

Fertilization
(internal/ external)

Types of reproduction 
(lay eggs/ give birth)

Examples 










52 ulasan:

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