Consider following features :(a) Organ system level of organisation(b) Bilateral symmetry(c) True coelomates with segmentation of bodySelect the correct option of animal groups which possess all the above characteristics.

1. Annelida, Arthropoda and Chordata

2. Annelida, Arthropoda and Mcllusca

3. Arthropoda, Mollusca and Chordata

4. Annelida, Mollusca and Chordata

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 1. Annelida, Arthropoda and Chordata

We need a group with organ-system organisation, bilateral symmetry and a true coelom with segmentation (metamerism).

Annelida, Arthropoda and Chordata are all organ-system level, bilaterally symmetrical and true coelomate with segmentation.
Mollusca is also organ-system level and bilateral, but its body is usually not segmented.

So Mollusca is excluded, which gives option 1.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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