Question

which type of phylum of multicellular organisms whose member lack nervous system​

Answer 1

Answer:

${ \huge{ \red{ \mathcal{ \colorbox{pink}{Phylum Porifera}}}}} \\ { \huge{ \red{ \mathcal{ \colorbox{pink}{(Sponges)}}}}}$

Sponges are filter-feeders, taking in microscopic plankton by miniature currents created by the choanocytes. Enterozoa: Animals with a digestive cavity or tract. Radiata: Radial symmetry, lacking central nervous system