Water vascular system is the characteristic of which group of the following:(a) Porifera(b) Ctenophora(c) Echinodermata(d) Chordata

Water vascular system is the characteristic of which group of the foll

1.	Water vascular system is the characteristic of which group of the following:(a) Porifera(b) Ctenophora(c) Echinodermata(d) Chordata
Answer» (a) Porifera and (c) Echinodermata