Answer:
Some characteristics:
* Multicellular animals, but the cells are not organised into tissues.
* Simplistic of animals
* Marine or fresh water
* No systems for respiration, digestion, sensory, excretion.
* Hermaphroditic
* Body possesses numerous pores (ostia) which lead into a series of canals.
* Called sponges; name means “pore bearing”
Explanation:
Pore bearing animals are the simplest animals
Pore-bearing animal belong to Phylum Porifera (Pore Bearing Animals).
