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NEET • BIOLOGY • ANIMAL KINGDOM
Animal kingdom practice · Hard
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Understanding
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Study the following sentences.
I.It is a terrestrial arthropod.
II.The prosoma bears a pair of chelicerae, a pair of the pedipalps and four pairs of walking legs.
III.The metasoma ends in a telson.
IV.First pair of walking legs are modified as poisonous claws.
Which of the above are true for Heterometrus?
I.It is a terrestrial arthropod.
II.The prosoma bears a pair of chelicerae, a pair of the pedipalps and four pairs of walking legs.
III.The metasoma ends in a telson.
IV.First pair of walking legs are modified as poisonous claws.
Which of the above are true for Heterometrus?
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Correct option: B
I and II
The correct answer is B (I and II) because Heterometrus (scorpion) is a terrestrial arthropod, and its prosoma bears chelicerae, pedipalps, and four pairs of walking legs.
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Hard
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Understanding
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Phylum-Aschelminthes is different from phylum-Platyhelminthes in
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Correct option: B
Shape of the body
Option B (Shape of the body) is correct because Aschelminthes have a cylindrical shape, while Platyhelminthes are flatworms.
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Hard
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Remembering
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Which of the following is a catadromous fish?
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Correct option: C
Anguilla sp
Option C (Anguilla sp) is correct because Anguilla sp (eels) are catadromous fish, meaning they live in freshwater but migrate to saltwater to breed.
184
Hard
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Remembering
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Choanocytes in ascon type of canal system form lining of
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Correct option: D
Spongocoel
Option D (Spongocoel) is correct because in the asconoid type of canal system in sponges, choanocytes line the spongocoel, the large central cavity.
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Understanding
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[A]: Birds excrete uric acid.
[R]: Birds do not have a urinary bladder.
[R]: Birds do not have a urinary bladder.
View answer and explanation
Correct option: A
Both A and R are true and R is the correct explanation of A
Option A (Both A and R are true and R is the correct explanation of A) is correct because birds excrete uric acid to conserve water, and the absence of a urinary bladder helps reduce weight for flight.
Revision notes and key takeaways
Review ANIMAL KINGDOM in your textbook or class notes, then use this set to check your understanding.
Showing 181-185 of 185 questions