Lakhmir Singh and Manjit Kaur Solutions for Chapter: Body Movements, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

The hip bone has two hollow spaces called P whereas the upper ends of the thigh bones are round in shape. At our hip, the upper ends of two thigh bones fit into empty spaces P to form joints Q.

How does joint Q differ from a knee joint?

The animals A, B, C and D, all move without legs. The animal A moves by the alternate contractions and relaxations of the muscles of its disc-shaped foot. Animal B lives in water and swims by moving its tail from side to side. The animal C lives in soil and moves by lengthening and shortening its body segments alternately. The animal D moves forward by moving its body sideways in the form of many loops. What are A, B, C and D?

There are 12 pairs of curved bones called X in our chest region. One end of bones X is joined to the backbone and their other end is joined to bone Y in the front to form a box-like structure Z. This strong, box-like structure protects the delicate internal organs P, Q and R of our body.

What is X?

There are 12 pairs of curved bones called X in our chest region. One end of bones X is joined to the backbone and their other end is joined to bone Y in the front to form a box-like structure Z. This strong, box-like structure protects the delicate internal organs P, Q and R of our body.

Y is called _____ bone.

There are 12 pairs of curved bones called X in our chest region. One end of bones X is joined to the backbone and their other end is joined to bone Y in the front to form a box-like structure Z. This strong, box-like structure protects the delicate internal organs P, Q and R of our body.

Z is called _____ cage.

There are 12 pairs of curved bones in our chest region. One end of bones is joined to the backbone and their other end is joined to the bone in the front to form a box-like structure. This strong, box-like structure protects the delicate internal organs P, lungs and liver of our body.

Name the organ P?

There are 12 pairs of curved bones in our chest region. One end of these bones is joined to the backbone and their other end is joined to the bone in the front to form a box-like structure. This strong, box-like structure protects the delicate internal organs heart, Q and liver of our body.

Name the organ Q?

There are 12 pairs of curved bones in our chest region. One end of these bones is joined to the backbone and their other end is joined to the bone in the front to form a box-like structure. This strong, box-like structure protects the delicate internal organs heart, lungs and R of our body.

Name the organ R?