The earthworm has segmentations on their body which help in movement. Each segment has a muscle and bristle called setae. The bristles or setae help anchor and control the worm when moving through the soil. The bristles hold a section of the worm firmly into the ground while the other part of the body protrudes forward.

Match the items given in Column I with those in column Il. Column I Column II 1. Hinge joint. a. Skull 2. Gliding joint. b. Ankle 3. Ball and socket joint. c. Between ribs and breast bone 4. Fixed joint. d. Between skull and vertebra 5. Pivot joint. e. Knee 6. Partially movable joint. f. Shoulder and upper arm

1-e The hinge joint allows movement in one direction. The examples of hinge joints are elbow and knee. 2-b In the gliding joint, two bones can slide upon each other. The bones of these joints are padded by cartilage and other tissues. 3-f In ball and socket joint the end of one of the bones is round like a ball. It is the type of synovial joint. 4-a Fixed joints edges are interlocked in a zipper-like fashion. This type of joint is held together by fibrous connective tissue. 5-d Pivot joint allows movement in all directions. Pivot joints hold the two bones of the forearm together. 6-c Partially movable joints have cartilage disc between bones and allow partial movement. Column I Column II 1. Hinge joint e. Knee 2. Gliding joint b. Ankle 3. Ball and socket joint f. Shoulder and upper arm 4. Fixed joint a. Skull 5. Pivot joint d. Between skull and vertebra 6. Partially movable joint c. Between ribs and breast bone

E M B I B E

Head Start Science 6>Chapter 9 - Animals-Form and Function>EXERCISES>Q 1

EASY

6th CBSE

IMPORTANT

Earn 100

What is setae?

Important Questions on Animals-Form and Function

MEDIUM

6th CBSE

IMPORTANT

Head Start Science 6>Chapter 9 - Animals-Form and Function>EXERCISES>Q 2

Why do cockroaches run away at the slightest movement?

MEDIUM

6th CBSE

IMPORTANT

Head Start Science 6>Chapter 9 - Animals-Form and Function>EXERCISES>Q 3

Why are the bones of a bird hollow and light?

MEDIUM

6th CBSE

IMPORTANT

Head Start Science 6>Chapter 9 - Animals-Form and Function>EXERCISES>Q 4

How is the tail fin of a fish useful?

HARD

6th CBSE

IMPORTANT

Head Start Science 6>Chapter 9 - Animals-Form and Function>EXERCISES>Q 5

Match the items given in Column I with those in column Il.

Column I	Column II
1. Hinge joint.	a. Skull
2. Gliding joint.	b. Ankle
3. Ball and socket joint.	c. Between ribs and breast bone
4. Fixed joint.	d. Between skull and vertebra
5. Pivot joint.	e. Knee
6. Partially movable joint.	f. Shoulder and upper arm