Question

1. How does a bird move?
2. Why do fish have streamlined body?
3. What is cartilage?
4.What is skeleton? State it's functions?
6th std

Answer 1

Answer:

1)Birds use their strong breast muscles to flap their wings

2)Fishes have streamlined body so that it can reduce friction in water and thus helping the fishes to move easily.

3)Cartilage is the main type of connective tissue seen throughout the body.

4)The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.

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Answer 2

1.Birds move by flying with the help of wings.

2.Fishes have streamlined body so that it can reduce friction in water and thus helping the fishes to move easily.

3.Cartilage is the main type of connective tissue seen throughout the body.

4.The skeletal system is the collection of bones, joints, ligame that provides a framework for the body.The Functions of the Skeleton are-

•supports the body.•facilitates movement.

•protects internal organs.•produces blood cells.ater and thus helping the fishes to move easily.

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