Which animals are bilaterally symmetrical and triploblastic?

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Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

Options

(a) Aschelminthes (round worms)
(b) Ctenophores
(c) Sponges
(d) Coelenterates (Cnidarians)

Correct Answer:

Aschelminthes (round worms)

Explanation:

Aschelminthes is bilaterally symmetrical and triploblastic. These are mostly aquatic, free living or parasitic. Their body is three layered which is ectoderm, mesoderm and endoderm.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)

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