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Ammocoete larva is of...

Ammocoete larva is of

A

Myxine

B

Petromyzon

C

Agnatha

D

Cephalochochordata

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Larval Stage**: The question asks about the Ammocete larva, which is a specific type of larval stage in certain organisms. 2. **Understand the Options**: The options provided are: - Myxine - Petromyzon - Agnatha - Cephalocordata 3. **Define Ammocete Larva**: The Ammocete larva is known to be the larval form of primitive jawless fishes. 4. **Link to Specific Organism**: The Ammocete larva is specifically associated with the Lamprey, which is scientifically classified under the genus Petromyzon. 5. **Life Cycle Context**: Adult Lampreys spawn in rivers, and after spawning, they die. The Ammocete larvae then live in the sediment of rivers for several years, feeding on detritus and microorganisms. 6. **Metamorphosis**: Eventually, the Ammocete undergoes metamorphosis to transform into an adult Lamprey. 7. **Final Answer**: Based on the information, the Ammocete larva is of **Petromyzon**. ---
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