Movement in Snail and Cockroach
Movement in Snail and Cockroach
Snail and Cockroach:
The snail carries a house on its back. It is a skeleton which is outside the body, but is not made up of bones. Such a skeleton is known as an exoskeleton. Crabs and insects such as cockroaches also have exoskeletons. Exoskeletons give support and protection and also allow movement at the joints. The snail has a thick structure called a foot. The foot produces a slimy substance called mucus which reduces the friction between foot and ground surface. A trail of mucus is left behind when snail crawls.The muscles of snail make them to move forward It is made up of strong muscles. It produces a series of wave-like movements that push the snail’s body forward.
Crabs and insects such as cockroaches have ____________________ . | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following organisms does not have both muscles and skeleton for movement? | |||
| Right Option : C | |||
| View Explanation | |||
The snail has a thick structure called a foot which produces a slimy substance called ______________________ to reduces the friction between foot and ground surface. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
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Barkha Arora
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Yogansh Nyasi
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Om Umang
10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
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10thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
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Archit Segal
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Ayan Ghosh
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Anika Saxena
8thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
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Shivam Rana
7thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
