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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
1
Medium
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Understanding
+4 | -1
Assertion: Cyclostomes have a sucking and circular mouth without jaws.
Reason: Body of cyclostomes is devoid of scales and paired fins.
Reason: Body of cyclostomes is devoid of scales and paired fins.
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Correct option: B
Both assertion and reason are correct but reason is not the correct explanation to assertion
Option B is correct because both the assertion and the reason are true statements about cyclostomes, but the reason does not explain why cyclostomes have a sucking and circular mouth without jaws.
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b) A post anal tail is present in all adult urochordates.
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a) In Vertebrata the notochord is replaced by a cartilaginous or bony vertebral column in the adult.
b) A post anal tail is present in all adult urochordates.
c) In Cephalochordata, notochord is present only in larval tail.
d) Vertebrates have a ventral muscular heart with two, three or four chambers. Read the following organisms given in the below
Tapeworm, Roundworm, Hookworm, Threadworm
How many of the above mentioned parasites causes inflammation of the intestinal tract? What is left when bath-sponges dries up?