Multiple choice

Which of the following statements is not true regarding the muscular gizzard in earthworm?

  1. It helps in movement.

  2. It helps in grinding the soil particles.

  3. It helps in decaying the leaves.

  4. It helps in decaying the oragnic matter.

  5. It is present in 8th and 9th segments.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Yes, this option is not true, hence the correct answer. Rows of S-shaped setae, embedded in the epidermal pits in the middle of each segment. Setae can be extended or retracted and thus help in movement.