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The coelom not lined by mesoderm and directly connected to the archenteron is found in

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Important Questions on Animal Kingdom

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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Bilaterally symmetrical and acoelomate animals are exemplified by
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Principal type of symmetry in triploblastic animals
MEDIUM
Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Write the difference between unisexual and bisexual animals. Give one example of each.
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Which of the following features is not present in the phylum Arthropoda?
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals

Which of the following phyla possess body cavity as shown in the diagram below?

Question Image

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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
True symmetry found in an animal which can be divided into two similar halves by one plane only is ____.
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals

Match the following and choose correct combination.

Column I Column II
i) Cellular grade level a) Pheretima
ii) Tissue grade level b) Schistosoma
iii) Organ level c) Obelia
iv) Organ system level d) Sycon
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
A jawless fish, which lays eggs in freshwater and whose larvae after metamorphosis return to the ocean is
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals

Match the following.

Sub Division Character Example
a Acoelomata i Coelom is formed by archenteron p Mollusca
b Pseudocoelomata ii Without a body cavity q Hemichordata
c Schizocoelomata iii Body cavity should not lined by mesodermal layers r Nematoda
d Enterocoelomate iv Coelom is formed by splitting of mesoderm s Platyhelminthes
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Which one of the following phyla is a pseudocoelomate?
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Which is the National Aquatic Animal of India?
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals

Match the following

   List - I     List - II
(a) Asymmetry (i) Cnidaria
(b) Radial symmetry (ii) Platyhelminthes
(c) Bilateral symmetry and Enterocoelom (iii) Porifera
(d) Bilateral symmetry without body cavity (iv) Hemichordata

The correct answer is

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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Which one of the following characteristics is not shared by birds and mammals?
MEDIUM
Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
The animals in which cleavages are radial and indeterminate and possess enterocoelom are generally:
MEDIUM
Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Which of the following characteristic features always holds true for the corresponding group of animals?
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
The chitinous exoskeleton of arthropods is formed by the polymerization of:
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Metagenesis refers to:
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
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
Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals
Identify the correct statement with reference to 'Enterocoelomates'.
A Body cavity is formed from endodermal pouches
B. They display determinate type of cleavage
C. Enterocoelomates are deuterostomes
D. Hemichordates are enterocoelomates
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Biology>Diversity in The Living World>Animal Kingdom>Classification of Animals

Consider following features:

  • Organ system level of organisation
  • Bilateral symmetry
  • True coelomates with segmentation of body.

Select the correct option of animal group which possess all the above characteristics: