Question

The body is distinguished into proboscis, collar, and trunk in:

• A. Herdmania
• B. Amphioxus
• C. Petromyzon
• D. None of the above

Answer 1

Answer: (D)

None of the above

‘The body is distinguished into three unequal regions, proboscis, collar, and trunk’: is a characteristic of Phylum Hemichordata. Hemichordates are wormlike marine invertebrates closely related to both chordates and echinoderms.

Whereas,

• Option A: Herdmania is a marine animal and has an oblong baglike body.
• Option B: Amphioxus are small fish-like marine animals body is divisible into four regions.
• Option C: Petromyzon (jawless fish) is a snake-like marine organism.

So, the correct answer is option 'D'.