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Octopus belongs to the phylum Mollusca.

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Important Questions on Diversity in Living Organisms

MEDIUM
Planaria possess high capacity of:
EASY
An important characteristic that Hemichordates share with Chordates is
MEDIUM
Match the following organisms with their respective characteristics:
  Column – I   Column – II
(a) Pila (i) Flame cells
(b) Bombyx (ii) Comb plates
(c) Pleurobrachia (iii) Radula
(d) Taenia (iv) Malpighian tubules

Select the correct option from the following:
MEDIUM

Match the following columns and select the correct option.

  Column-I   Column-II
(a) Gregarious, polyphagous pest (i) Asterias
(b) Adult with radial symmetry and larva with bilateral symmetry (ii) Scorpion
(c) Book lungs (iii) Ctenoplana
(d) Bioluminescence (iv) Locusta
EASY
Select the taxon that represents both marine and freshwater species.
EASY
In the case of Poriferans, the spongocoel is lined with flagellated cells called
HARD
Study the following statements and identify the correct ones-
I) Colloblasts are found in sea gooseberries
II) Larva of cestodes is Muller's larva
III) Nematodes have renette gland for excretion
IV) Stomochord is found in hemichordates
EASY
The chitinous exoskeleton of arthropods is formed by the polymerization of:
EASY
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
EASY
Water vascular system is found in ___.
MEDIUM
Which of the following features is not present in Periplaneta americana?
MEDIUM
Study the following and pick up the correct statements:
I) Aristotle's lantern is found in echinoids
II) Glochidium is the larva of cephalopods
III) Scorpions respire with book lungs.
IV) Parapodia are found in oligochaetes
EASY
Which one of the following living organisms completely lacks a cell wall?
MEDIUM

Match the following

   List - I     List - II
(a) Crab (i) Green glands
(b) Dugesia (ii) Malpighian tubules
(c) Wuchereria (iii) Renette glands
(d) Scolopendra (iv) Flame cells

The correct answer is

EASY
Match the species in Column-I with their respective feature of body organisation in Column-II
  Column-I   Column-II
P Mollusca i Pseudocoelom
Q Annelida ii Radula
R Nematoda iii Radial symmetry
S Echinodermata iv Segmentation

Choose the CORRECT combination.

MEDIUM

Match the following:

  Mollusc   Class
A) Neopilina I)  Tetrabranchiata
B) Chiton II) Scaphopoda
C) Aplysia III) Monoplacophora
D)  Pulsellum IV) Polyplacophora
    V) Gastropoda

The correct match is 

EASY
Which of the following characteristics is mainly responsible for the diversification of insects on land?
EASY
Which of the following features is not present in the phylum Arthropoda?
EASY
Which of the following animals does not undergo metamorphosis?