Careers360 Logo
ask-icon
share

    Class Aves - Characteristic Features MCQ - Practice Questions with Answers

    Updated on Sep 18, 2023 18:34 AM

    Quick Facts

    • 25 Questions around this concept.

    Solve by difficulty

    The heart is completely 4 chambered in 

    In aves, forelimbs are modified into wings for 

    Concepts Covered - 1

    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)

    Study it with Videos

    Class Aves - Characteristics Features

    "Stay in the loop. Receive exam news, study resources, and expert advice!"

    Get Answer to all your questions