Multiple choice

Which of the following statements is/are true? a. The movement of blood helps the earthworm to move forward. b. The earthworm’s body secretes a slimy substance, which helps in movement. c. Locomotion in earthworm is brought about by the relaxation and contraction of body muscles.

  1. Only a

  2. Only b

  3. Only c

  4. Only b and c

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

All the statements are correct. Circular and longitudinal muscle fibres are present on the body wall of the earthworm. The movement of these muscles pushes the blood in the direction of body movement. This movement of blood helps the animal move forward. The earthworm’s body secretes a slimy substance, which helps in movement. Locomotion in earthworm is brought about by the relaxation and contraction of body muscles.

Keep practicing — related questions