Question

what is parazoa and eumetazoa ​

Answer 1

Answer:

A tissue is an aggregation of cells that performs a function. Parazoans lack true tissues, whereas eumetazoans have true tissues. ... Eumetazoans have distinct collections of cells that are arranged for specific purposes

Answer 2

Explanation:

The Parazoa includes only the Phylum Porifera, the sponges. This group is distinguished from the Eumetazoa by the fact that their tissues are poorly defined and they lack true organs. The Eumetazoa all have well defined tissues and true organs.