Question:
In Pheretima, gizzard lies in this segment(s):
In Pheretima, gizzard lies in this segment(s):
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Sequence: B-P-O-G-S-I (Buccal, Pharynx, Oesophagus, Gizzard, Stomach, Intestine).
Gizzard grinds (8th).
Updated On: Mar 31, 2026
- 1 - 3
- 4
- 5 - 7
- 8
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The Correct Option is D
Solution and Explanation
Step 1: Recall Earthworm (\Pheretima posthuma) Digestive System:
The alimentary canal is a straight tube with the following segmentation:
Step 2: Identify the Answer:
The gizzard is located in the 8th segment.
The alimentary canal is a straight tube with the following segmentation:
- Mouth: 1st segment.
- Buccal Chamber: 1st - 3rd segments.
- Pharynx: 4th segment.
- Oesophagus: 5th - 7th segments.
- Gizzard: 8th segment (muscular organ for grinding soil).
- Stomach: 9th - 14th segments.
- Intestine: 15th segment to the last.
Step 2: Identify the Answer:
The gizzard is located in the 8th segment.
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