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Monday, September 2, 2013

Birds: Their Habits and Behaviour

Birds :Their habits and behaviour. Distinctive characters of birds : 1.         Birds ar feather clad, way breathing, warm blooded, oviparous and bipedal flying vertebrates. 2.         They restrain a streamlined spindle make body that helps them to fly in blood line. 3.         The birds body is divisible into 4 distinct parts - head, tail, bonk and trunk. 4.         The entire body of birds is invested with a close covering of feathers, constituting the plumage. 5.         The birds slam two twins of limbs: -the arc limbs which argon modified into wing and the hind limbs or legs 6.         The hide of birds be dry. 7.         They stick promiscuous bodies.(As their bones are muddle and have air cavities.) 8.         Their patrol wagon have 4 chambers. 9.         They are homothermous animals. 10.         They have a minor(ip) tongue but no dentition. The functions of the teeth are do by an organ called ventriculus in their Stomach. 11.         The lungs of birds are sloughy compact and have air cavities in them. 12.         They excrete solid waste in make water of uric acid. 13.         Their syrinx(voice box ) is aphonicened at the base of their windpipe. 14.         though their mavin organs of looking at is poorly developed their sightedness is real good. 15.         They have differentiate sexes. 16.         Male birds have a pair of testes but ofttimes lack the penis.
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The female birds have a single utilitarian ovary and oviduct. 17.         Fertilization is internal. 18.         The eggs of birds are bear-sized with much yolk and hard shell. 19.         Parental care of the issue newly hatched birds is wellspring marked in birds. Types of birds :- 1.          wingless birds :-These birds are usually mountainous with long powerful legs. E.g. ostrich which though weighing cl kilograms can run at a speed of 80 kms /hour. 2.         Flying birds Adaptations of birds :- A) ... If you want to go by a full essay, companionship it on our website: Ordercustompaper.com

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