Chapter : 4. Diversity In Living Organism
Class - Aves
Class - Aves :
Warm-blooded, tetrapodous vertebrates (birds) with various flight adaptations.
Size ranges from smallest humming bird to largest ostrich.
Heart 4 chambered.
Horny scales persist on the feet but feathers cover most of the body. Cutaneous glands are absent.
Boat-shaped body is divisible into head, neck, trunk and tail.
Fore-limbs modified into wings for flight. Kiwis have vestigial wings.
Example : Gallus (chicken), Passer (house sparrow), Corvus (crow), Columba (pigeon), Psittacula (parrot), Pavo (peafowl peacock), Eudynamys (koel), Bubo (owl)
Warm-blooded, tetrapodous vertebrates (birds) with various flight adaptations.
Size ranges from smallest humming bird to largest ostrich.
Heart 4 chambered.
Horny scales persist on the feet but feathers cover most of the body. Cutaneous glands are absent.
Boat-shaped body is divisible into head, neck, trunk and tail.
Fore-limbs modified into wings for flight. Kiwis have vestigial wings.
Example : Gallus (chicken), Passer (house sparrow), Corvus (crow), Columba (pigeon), Psittacula (parrot), Pavo (peafowl peacock), Eudynamys (koel), Bubo (owl)
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