Select the Taxon mentioned that represents both marine and fresh water species:
Echinoderms
Ctenophora
Cephalochordata
Cnidaria
Phylum porifera -
Most primitive multicellular organism having pores in their body walls.(Known as ostia).They are mostly marine, few freshwater.The only phylum without nerves cells.
- wherein
Spongilla,Sycon,Euspongia.
Members of ctenophora, cephalochordata and echinodermata are exclusively marine.
Option 1)
Echinoderms
incorrect
Option 2)
Ctenophora
incorrect
Option 3)
Cephalochordata
incorrect
Option 4)
Cnidaria
correct