9. Form and Movement in Animals Worksheet – Science

1. Why is the rib cage an important part of the skeletal system?

2. The image showcases a knee joint with articular cartilage. What is the primary function of the articular cartilage as it relates to joint movement?

3. The human rib cage, consisting of P pairs of ribs, plays a crucial role in protecting vital organs such as the Q and R. These ribs are connected to the spine and form a protective cage around these essential organs.

4. Match the joint types in Column I with their characteristics in Column II.
Column I (Joint Type) Column II (Characteristic)
A. Ball-and-socket joint 1. Provides little movement in all directions
B. Hinge joint 2. Allows maximum movement in all directions
C. Gliding joint 3. Provides back and forth movement like a door hinge

5. Earthworms maintain their body shape by: (Remember)

6. Assertion (A): The backbone is comprised of 33 vertebrae and protects the spinal cord.
Reason (R): The spinal cord is a critical component of the central nervous system.

7. Why are the tails of fish an important aspect of their movement? (Skill/Concept)

8. Identify and Correct the Misplaced Concepts in Parenthesis.
Earthworms move by (contracting) and (lengthening) their segments, secreting a (sticky) substance for lubrication. They have a (tube-like) body without bones but with fluid to maintain shape. Tiny hair-like bristles on their segments aid in movement.
Select the correct option regarding this.

9. Identify and Correct the Misplaced Concepts in Parenthesis.
Cockroaches have a (soft) outer skeleton and (six) pairs of legs for movement. They use their (wings) for smelling and have (antennae) for short-distance flight.
Select the correct option regarding this.

10. Solve - Riddle in Science
With a long body and segments to bend,
In the soil, my time I spend.