Question

Ametabolous condition is present in:

• A. Mayfly
• B. Silverfish
• C. Zorapterans
• D. Psocids

Hint:

Ametabolous development is exclusive to primary wingless insects (Apterygotes).
Silverfish (order Zygentoma/Thysanura) is the classic textbook example of an ametabolous insect.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Metamorphosis refers to the structural and physiological changes an insect undergoes from hatching to reaching the adult stage.

Step 2: Detailed Explanation:
Insects are classified based on their type of metamorphosis:
- Ametabolous (No metamorphosis): Primitive wingless insects where nymphs hatch resembling miniature adults, simply growing larger with each molt.
This is present in silverfish (Thysanura) and springtails (Collembola).
- Hemimetabolous (Incomplete metamorphosis): Mayflies.
- Paurometabolous (Gradual metamorphosis): Psocids and Zorapterans.

Step 3: Final Answer:
An ametabolous condition is present in Silverfish, which is option (B).