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 :
Exercise
①Fill 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.
②Write 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
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BalasPadam