Answer Type Questions:
1_What is ball and socket joint?
2_why can we move our hand in all directions?
3_what is chitin?
4_what helps the fish to swim in water easily?
5_How do our muscles work?
6_What are cartilages?
Answers
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1
Explanation:
- inin ball and socket joint one end of bone has round shaped like a ball which feeds into socket or hollow space in the other bone. the ball type end in of one bone can return freely in socket of the other bone.
- we can move our hand in all direction because these of ball and socket joint in our solder that allow us to move our hand in all direction.
Answered by
0
Answer:
1_The ball and socket joint is a type of synovial joint in which bell-shaped surface of one rounded bone fits into the cup- like depression of another bone.
2_ Due to the presence of a ball and socket joint in our shoulder.
3_ A fibrous substance consisting of polysaccharides, which is the major constituent in the exoskeleton of arthropods and the cell walls of fungi
4_ The muscles contract from side to side and front to back .the fish's body pushes against the water and moved the fish forward.
5_ muscles do work because of tendon which help them to move .
6_ Cartilage is tough but flexible tissue that is the main type of connective tissue in the body.
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