Why is skeleton in cockroach called exoskeleton, whereas in human beings it is called endoskeleton?

Important Questions on The Body and Its Movements

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>EXERCISE>Q 5

Explain movement in an earthworm.

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>THINK AND ANSWER>Q 1

There are animals named A, B, C and D moving without legs. Animal A moves by moving its body side ways and forming loops. Animal B has a disc-shaped muscular foot. It moves by alternate contraction and relaxation of muscles in the foot and also secretes mucus. The animal C has scales on its body and has streamlined shape. It swims in water by moving its tail from side to side. Animal C also has fins which help it to steer, balance, and stop in water while swimming. Animal D moves by lengthening and shortening its body segments. It lives under the soil and comes out only when it rains. Name the animals A, B, C, D.

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>THINK AND ANSWER>Q 2

Can we move our elbow backward? Name two more parts that cannot move backwards like elbows.

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>DISCUSS>Q 1

How is bone marrow important for the body?

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>DISCUSS>Q 2

What if we had one long backbone rather than having a number of small bones called vertebrae? Which one would you prefer and why?

MEDIUM

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>DISCUSS>Q 3

The skeletal system in humans is called endoskeleton and the one found in snail is called exoskeleton. Which of the two (endoskeleton or exoskeleton) is stronger and why?

EASY

6th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 9 - The Body and Its Movements>FUN ACTIVITIES>Q 1

How do they move? Choose correct words from the box.

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