Which of the following statements about deuterostomes is false? Which of the following statements about deuterostomes is false? All deuterostomes are triploblastic and have three tissue layers. All deuterostomes exhibit radial symmetry in their bodies. All deuterostomes have a coelom. All deuterostomes have a similar pattern of early embryonic development.

Explanation:

deuterostomes :  All deuterostomes are triploblastic and have 3 layers:

i) endoderm, ii) mesoderm and iii) Ectoderm

In deuterostomes , a mouth that develops separately from the blastopore.

Taxonomically, the deuterostomes  defines as any member of the phyla (Chordata, Hemichordata, Echinodermata, etc) in which the anus appears first,  and it develops at or near the blastopore.

All deuterostomes have a coelom.  

All deuterostomes have a similar pattern of early embryonic development.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.