NEET UG BIOLOGY MCQ: ANIMAL KINGDOM

1 Hard

1 of 1

Understanding +4 | -1

[A]: Leaches secrete hirudin from their salivary glands.
[R]: Hirudin is anticoagulating agent.

View answer and explanation

Correct option: B

Both A and R are true and R is not the correct explanation of A

Option A (Both A and R are true and R is the correct explanation of A) is correct because leeches do secrete hirudin from their salivary glands, and hirudin is indeed an anticoagulant agent, preventing blood clotting.

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Which one of the following in birds, indicates their reptilian ancestry The presence of the tube feet is a characteristic feature of the phylum Respiratory organs of Saccoglossus are Which of the following statements are true for the phylum – Chordata?
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c) In Cephalochordata, notochord is present only in larval tail.
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Tapeworm, Roundworm, Hookworm, Threadworm

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