Question
An ascidian tadpole larva can be compared with a larva of :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
Amphibian
Ascidian Tadpole Larva Comparison
The question asks to identify which animal's larva can be compared to an ascidian tadpole larva.
Ascidian Tadpole Larva Characteristics
- Ascidian tadpole larvae are the free-swimming larval stage of tunicates (subphylum Tunicata).
- These larvae exhibit distinct chordate features, including a notochord, dorsal hollow nerve cord, and pharyngeal slits, although these are often transient.
- Their body plan, with a tail, sensory vesicles, and a distinct head region, resembles the tadpole larvae of amphibians.
Comparison with Other Larvae
- Amphibian Larvae: Amphibian larvae, commonly known as tadpoles, share a superficial resemblance in shape (presence of a tail) and possess similar chordate characteristics during their development. This makes the comparison valid and frequently cited in biology.
- Fish Larvae: While fish larvae are aquatic and develop from eggs, their morphology and developmental patterns differ significantly from the ascidian tadpole.
- Bird and Reptile Larvae: Birds and reptiles develop directly or have embryonic stages within amniotic eggs, lacking a free-swimming larval stage comparable to the ascidian tadpole.
Conclusion
Due to the shared tadpole-like morphology and the presence of transient chordate features, the ascidian tadpole larva is most commonly compared to the larva of Amphibians.
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