EASY
Earn 100

Read following statement carefully with regards to "Sea Walnut"

"The body of sea walnut bears __A__ external rows of comb plates which help in __B__".
Select the correct option which correctly fills up the both blanks A and B respectively.

50% studentsanswered this correctly

Important Questions on Classification

EASY
Which of the following options does correctly represent the characteristic features of phylum Annelida?
EASY
Which of the following animals does not undergo metamorphosis?
EASY
Bilaterally symmetrical and acoelomate animals are exemplified by
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
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:
EASY

Observe the following simplified scheme and choose the correct option that matches with the letters given in the boxes.

Question Image

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

Match the animals of Column I with their respective classes in Column II and choose the correct answer.

  Column- I   Column- II
1. Aptenodytes I Aves
2. Hemidactylus II Chondrichthyes
3. Carcharodon III Mammalia
4. Pteropus IV Reptilia
    V Osteichthyes

Select the code for the correct answer from the options given below.

EASY
Which one of the following living organisms completely lacks a cell wall?
MEDIUM
Planaria possess high capacity of:
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
In which one of the following phyla is the body segmented?
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
All vertebrates are chordates but all chordates are not vertebrates, why?
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

Match List-I with List-II.

List-I List-II
(a) Metamerism (i) Coelenterata
(b) Canal system (ii) Ctenophora
(c) Comb plates (iii) Annelida
(d) Cnidoblasts (iv) Porifera
EASY
Which of the following is exclusively marine?
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
EASY
Match the type of cells given in Column I with organisms given in Column II. Choose the appropriate combination from the options below.
 
Column-I Column-II
P Flame cells i Sponges
Q Collar cells ii Hydra
R Stinging cells iii Planaria