Ophiura is

Which of the following options have features corresponding to the given animals Ophiura, Asterias, Antedon, Echinus

What is true about Asterias, Ophiura and Cucumaria?

Select the distinguishable characters of Ophiura from Balanoglossus

Aristotle's lantern is associated with (a) Respiration in Ophiura (b) Excretion in Cucumaria (c) Feeding in Echinus (d) Locomotion in Antedon

Excretory system is absent in (A) Loligo (B) Ophiura (C) Antedon (D) both (B) and (C)

Aristotle's lantern which helps in mastication is a characteristic feature of 1)Asterian (Star fish) 2) Echinus (Sea urchin) 3) Antedon (sea lily) 4) Ophiura (brittle star)

Match the columns -I and Column -II and choose the correct combination the options given {:("","ColumnI","","Column-II"),(A,"Echinus",i,"Brittle star"),(B,"Cucumaria",ii,"star fish"),(C,"Antedon",iii,"Sea urchin"),(D,"Ophiura",iv,"Sea cucumber"),(E,"Asterias",vi,"Sea lily"):}

Match the columns and find the correct option {:(I,II,III),((1)"Ctenophora",(a)"Ancylostoma",(i)"Bioluminescence"),((2)"Plathyhelminthes",(b)"Pleurobrachia",(ii)"Acoelomate"),((3)"Cyclostomata",(c)"Planaria",(iii)"Migration"),((4)"Aschelminthes",(d)"Ophiura",(iv)"Coelomata"),((5)"Echinodermata",(e)"Hog fishes",(v)"Endoparasite"):}