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 Identify the vertebrate group of animals characterized by crop and gizzard in its digestive  system:

Option: 1

Aves


Option: 2

Reptilia


Option: 3

Amphibia


Option: 4

Osteichthyes


Answers (1)

best_answer

 

 

Class Aves - Characteristics Features -

  • 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.
  • 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.

 

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Aves or birds have crop and gizzard in their digestive system.

Posted by

Suraj Bhandari

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