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NEET Biology Locomotion and Movement Question Bank Self Evaluation Test - Locomotion and Movement

  • question_answer
    Muscles must have something rigid to pull against if they are to cause movement. In case of humans, the rigidity is supplied by ____; in the case of earthworms, the rigidity come from???.

    A) A hydrostatic skeleton; an endoskeleton.

    B) Opposing muscles; an exoskeleton.

    C) An exoskeleton; an endoskeleton;

    D) An endoskeleton; a hydrostatic skeleton.

    Correct Answer: D

    Solution :

    [d] An exoskeleton is a hard encasement deposited on the surface of the animal; an endoskeleton consists of hard supporting elements, such as bones, buried within the soft tissues of an animal.


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