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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.
Related Questions: - Which of the following belongs to class insecta
- Which one of the following proved effective for biological control of nematodal
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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 following belongs to class insecta
- Which one of the following proved effective for biological control of nematodal
- Restriction endonuclease is employed for cutting
- Technique of growing plants without soil in nutrient solution is called
- Which one of the following has maximum genetic diversity in India?
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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