Question

the animals of which group are mostly asymmetrical​

Answer 1

Answer:

Explanation:

Cnidarians (jellyfish, corals) are radially symmetric; Bilaterians (all animals except cnidarians and sponges) are bilaterally symmetric (exception: Recent echinoderms are pentaradially symmetric).

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Answer 2

Answer:

Only sponges (phylum Porifera) have asymmetrical body plans. Some animals start life with one type of body symmetry, but develop a different type as adults; for example, sea stars are classified as bilaterally symmetrical even though their adult forms are radially symmetrical.