Question

The movement of earthworm happens in the following steps
1. Extension of front part of the body.
2. Rear end is released.
3. Body is shortened.
4. Front end is fixed.
Arrange it in a sequential order.

• A. 1, 2, 4, 3
• B. 1, 4, 2, 3
• C. 2, 3, 4, 1
• D. 1, 2, 3, 4

Answer 1

The correct option is B 1, 4, 2, 3

The earthworm first extends the front end of the body, keeping the rear portion fixed to the ground. Then it fixes the front end and releases the rear end. It then shortens the body and pulls the rear end forward. It repeats this sequence to move forward.