Bilaterally symmetrical and acoelomate animals are exemplified by

(A)Platyhelminthes
(B)Aschelminthes
(C)Annelida
(D)Ctenophora

The NCERT line that answers it

Verbatim line

Flatworms are bilaterally symmetrical, triploblastic and acoelomate animals with organ level of organisation.

Chapter: Animal Kingdom
Section: 4.2.4 Phylum – Platyhelminthes
Page: 5
Words matched: 13 of 13

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'Flatworms are bilaterally symmetrical... and acoelomate animals', which directly matches the question's requirement for bilaterally symmetrical and acoelomate animals, and flatworms correspond to Platyhelminthes.

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Question text is reproduced from the published NEET 2020 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.