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
B.
Porifera
In Porifera (sponges), bodies are asymmetrical. Body lacks tissues or organs, but from a meshwork of cells surrounding channels that open to the outside through pores, and that expand into internal cavities lined with food filtering flagellated cells (choanocytes).
Planaria possess high capacity of
metamorphosis
regeneration
alternation of generation
alternation of generation
A marine cartilaginous fish that can produce electric current is
Pristis
Torpedo
Trygon
Trygon
Which one of the following living organisms completely lacks a cell wall?
Cyanobacteria
Sea-fan (Gorgonia)
Saccharomyces
Saccharomyces
Select the taxon mentioned that represents both marine and freshwater species
Echinoderms
Ctenophora
Cephalochordata
Cephalochordata
