Question. In arthopods excretion takes place though
(a) General body surface
(b) Flame cells
(c) Malphigian tubules
Question. Which one is the second largest animal phylum?
Question. Molluscs are
(b) Soft bodied
(d) All of the above
Question. In Molluscs the space between the visceral hump and dorsal spongy skin in called
(a) Mantle cavity
(b) Body cavity
Question. Which is a mollusc?
(a) Sea mouse
(b) Sea hare
(c) Sea cow
(d) Sea horse
Question. Which one is a false fish?
Question. Which one is a wrong combination?
(a) Mollusca – pila, chaetopleura
(b) Echinodermata – echinus, antedon, cucumaria
(c) Molluscs are dioecious, oviparous with indirect development
Question. Water vascular system and tube feet is a characteristic of?
(d) Bony fishes
Question. The most distinctive feature of Echinodermata is water vascular system which
(b) Capture and food transport
Question. The following characters are associated with animals of
A. Excretory system absent
B. Dioecious, exernal fertilisation, indirect development with free swimming larva
C. Water vascular system is present
D. Unsegmented body
E. Complete digestive system with ventral mouth and anus on dorsal or upper side
Question. The body of balanoglossus consists of
Question. Which one of the following is correct?
(a) Now hemichordates has been placed under non chordates because of absence of notochord
(b) Saccoglossus is a hemichordate
(c) Hemichordate is worm like