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  4. Class Aves - Characteristic Features MCQ - Practice Questions with Answers

Class Aves - Characteristic Features MCQ - Practice Questions with Answers

Updated on Sep 18, 2023 18:34 AM | #NEET

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In aves, forelimbs are modified into wings for 

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Class Aves - Characteristics Features
  • This class includes Birds
  • Birds have streamlined bodies covered with feathers.
  • Their forelimbs are modified into wings.
  • The hind limbs are covered with scales and help in walking, swimming or clasping tree branches.
  • Skin is dry. There is no gland. Except preen gland (oil glands) at the base of the tail
  • They have a bony endoskeleton. They have light and porous bones called pneumatic bones to assist flight.
  • They have a monocondylic skull.
  • They have a strong breast bone called keel to which the flight muscles are attached.
  • They have a four chambered heart.
  • They are warm blooded.
  • They are dioecious. Fertilization occurs internally. They are oviparous. 
  • The jaws are modified to form beak.
  • They lack urinary bladder.
  • They are uricotelic.
  • They consist of additional chambers, Crop and gizzard. Three chambered cloaca.
  • Examples : Corvus (Crow), Columba (Pigeon), Psittacula (Parrot), Struthio (Ostrich), Pavo (Peacock), Aptenodytes (Penguin), Neophron (Vulture)

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Class Aves - Characteristics Features

Study other Related Concepts

Class Aves - Characteristic Features Current Topic

Concept of Living and Need for Classification
Taxonomy and Taxonomical Aids
Steps of Taxonomy
Vernacular and Scientific Names
Binomial Nomenclature
Taxonomic Hierarchy In Biological Classification
Taxonomical Aids
Classification Systems
Three domains of life
History of Classification of Organisms

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