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Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to
Options
(a) Gut peristalsis
(b) Setae
(c) Coelomic fluid
(d) Blood
Correct Answer:
Coelomic fluid
Explanation:
Hydraulic skeleton is the system of support found in soft bodies invertebrates, which relies on the incompressibility of fluids contained within the body cavity. In earthworms the coelomic fluid is under pressure within the coelom and therefore provides support for internal organs. Due to hydraulic skeleton, during burrowing, the anterior end becomes turgid and aids in relaxation of longitudinal muscles.
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Topics: Plant and Animal Kingdom
(295)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the micro organism is the smallest living cell without cell wall
- The body calcium level is lowered by the deficiency of
- Which one of the following plasma proteins is involved in the coagulation of blood?
- When a neuron is in resting state I not conducting any impulse, the axonal membrane is:
- Catalytic converter is involved in the control of
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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