Select the taxon mentioned that represents both marine and freshwater species
Echinoderms
Ctenophora
Cephalochordata
Cephalochordata
D.
Cephalochordata
Cnidarian members are found both in fresh water and marine environments, while members of Ctenophora, Cephalochordata and Echinodermata are found exclusively in the marine environment.
Which one of the following living organisms completely lacks a cell wall?
Cyanobacteria
Sea-fan (Gorgonia)
Saccharomyces
Saccharomyces
A marine cartilaginous fish that can produce electric current is
Pristis
Torpedo
Trygon
Trygon
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristic of phylum
Coelenterate
Porifera
Mollusca
Mollusca
Planaria possess high capacity of
metamorphosis
regeneration
alternation of generation
alternation of generation
