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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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- Pneumatic bones four chamberd heart and feathers occur in
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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
- Histones are rich in
- Pneumatic bones four chamberd heart and feathers occur in
- Hypothetical plant hormones are
- Glycolysis leads to the formation of 2 molecules of
- Where does the light reaction of photosynthesis occurs
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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