Question

what is the distinguishing feature of sponges (phylum porifera) that sets them apart from many other multicellular organisms? they lack true tissues. they have segmented bodies. they are only found on land.

Explanation:

Sponges (Phylum Porifera) are multicellular organisms. True tissues are groups of cells that have a similar structure and function. Sponges do not have true tissues. Many other multicellular organisms have true tissues. For example, in animals like insects (which have muscle tissue, nerve tissue etc.), these tissues work together for various functions. Segmented bodies are a feature of some other phyla like Annelida (earthworms) and Arthropoda (insects, crustaceans etc.), not a distinguishing feature of sponges. Sponges are mainly aquatic (marine and freshwater), not only found on land.

Answer:

They lack true tissues.