Question

What animal group lacks true tissues and includes species that are asymmetrical

Answer 1

The animal group which lacks true tissues and includes species which are asymmetrical is; Sponges.

Which animal group includes species that are asymmetrical?

It follows from biology of classifications that the defining characteristic of sponges includes the fact that they lack true tissues and the species are asymmetrical. Hence, the features indicated in the task content are suggestive of sponges.

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