Zoology
Worm like sea cucumber with no tube feet and respiratory tree and burrowing habits are included in the order:
A.
Apoda
B.
Molpadonia
C.
Ophiurae
D.
Articulata
Aristotle's lantern is the characteristic of class:
A.
Asteroidea
B.
Echinoidea
C.
Holothuroidea
D.
Ophinuroidea
Which order is not included in class Holothuroidea?
A.
Dendrochirota
B.
Forcipulata
C.
Molpadonia
D.
Aspidochirota
Which echinoderm is stalked?
A.
Solaster
B.
Ophiura
C.
Echinocardium
D.
Antedon
The Pluteus larva of Echinodermata belongs to the class:
A.
Holothuroidea
B.
Echinoidea
C.
Asteroidea
D.
Ophinuroidea
Which is not correctly matched?
A.
Spatangoida - Heart urchins
B.
Ophiuroidea - Brittle stars and allies
C.
Crinoidea - Brittle and serpentstars
D.
None of these
Class Asteroidea has:
A.
Madreporite and anus on oral side
B.
Madreporite on aboral side, anus on oral side
C.
Madreporite on oral side, anus on aboral side
D.
Madreporite and anus on aboral side
Class Ophiuroidea is characterised by:
A.
The absence of arms
B.
Arms with pinnules
C.
Arms sharply marked off from the central disc
D.
Arms not sharply marked off from the central disc
Sedentary echinoderms are grouped under class:
A.
Crinoidea
B.
Ophiuroidea
C.
Echinoidea
D.
Holothuroidea
The endoskeleton of echinoderms is unique with respect to other invertebrates by being ____________ in origin:
A.
Ectodermal
B.
Mesodermal
C.
Endodermal
D.
Meso-endodermal
Which of the following echinoderms class possesses neither arms nor spines?
A.
Asteroidea
B.
Echinoidea
C.
Crinoidea
D.
Holothuroidea
The spiny brittle star Ophiothrix belongs to:
A.
Ophiuroidea
B.
Echinoidea
C.
Holothuroidea
D.
Asteroidea
Respiration in Echinodermata is carried out by the:
A.
Ambulacral groove
B.
Branchiae
C.
Book-lung
D.
Tracheae
Coelom in Echinodermata is:
A.
Pseudocoelic
B.
Haemocoelic
C.
Schizocoelic
D.
Enterocoelic
Which of the following is absent in the Phylum Echinodermata?
A.
Coelom
B.
Vascular system
C.
Excretory organs
D.
Respiratory organs
Which mollusc is the largest invertebrate?
A.
Giant clam
B.
Giant snail
C.
Giant squid
D.
Giant octopus
Asymmetrical molluscs belong to the class:
A.
Gastropoda
B.
Cephalopoda
C.
Scaphopoda
D.
None of these
The eye of which of the following group of Mollusca, resembles the vertebrate eye:
A.
Gastropoda
B.
Pelecypoda
C.
Cephalopoda
D.
Bivalvia
Cephalopoda is a class of animals in which:
A.
Notochord extends upto cephalic region
B.
Foot is located on the head
C.
Head is located on the foot
D.
Head is fused with thorax
Which snail burrows into wooden structures immersed in the sea, causing serious damage to ships?
A.
Teredo
B.
Torpedo
C.
Tonicella
D.
Turbo
Some endoparasitic degenerated snails are found in the class:
A.
Scaphopoda
B.
Pelecypoda
C.
Cephalopoda
D.
Gastropoda
Neoplina galathea is the connecting link between:
A.
Annelida and Mollusca
B.
Arthropoda and Mollusca
C.
Echinodermata and Mollusca
D.
None of these
Molluscs are characterized by unsegmented body except for the class:
A.
Monoplacophora
B.
Amphineura
C.
Scaphopoda
D.
Cephalopoda
Neopilina galathaea belongs to:
A.
Scaphopoda
B.
Gastropoda
C.
Monoplacophora
D.
Aplacophora
Chiton with 8 calcarious dorsal plates belongs to:
A.
Aplacophora
B.
Monoplacophora
C.
Octopoda
D.
Polyplacophora