The ventral tube on the first abdominal segment of a springtail:
Correct answer: B. Collophore
- A. Costa
- B. Collophore
- C. Embolium
- D. Ectoparasitoid
Explanation
The collophore is a tubular, often protrusible structure on the first abdominal segment of springtails and helps in adhesion and water regulation. Costa and embolium are wing-related terms, not springtail structures.
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