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Gnathostomata is characterised by the presence of:

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Important Questions on Animal Kingdom

EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
All vertebrates are chordates but all chordates are not vertebrates, why?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Select the taxon that represents both marine and freshwater species.
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Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which one of these animals is not a homeotherm?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which one of the following characteristics is not shared by birds and mammals?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which of the following characteristics is mainly responsible for the diversification of insects on land?
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Biology>Diversity in The Living World>Animal Kingdom>Chordates
The first tetrapod vertebrates are descended from         .
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Water vascular system is found in ___.
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Biology>Diversity in The Living World>Animal Kingdom>Chordates
Choose the correct statement.
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
An important characteristic that Hemichordates share with Chordates is
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
In the case of Poriferans, the spongocoel is lined with flagellated cells called
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which of the following features is not present in the phylum Arthropoda?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
The chitinous exoskeleton of arthropods is formed by the polymerization of:
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Biology>Diversity in The Living World>Animal Kingdom>Chordates
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>Chordates

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.

HARD
Biology>Diversity in The Living World>Animal Kingdom>Chordates
A jawless fish, which lays eggs in freshwater and whose larvae after metamorphosis return to the ocean is
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
A marine cartilaginous fish that can produce electric current is:
HARD
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which among these is the correct combination of aquatic mammals?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Which one of the following living organisms completely lacks a cell wall?
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
EASY
Biology>Diversity in The Living World>Animal Kingdom>Chordates
Metagenesis refers to: