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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
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Hard
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Understanding
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Which of the following statements are true/false?
I.In torpedo, the electric organs are capable of generating strong electric shock to paralyze the prey
II.Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming
III.Amphibian skin is moist and has thick scales
IV.Birds are poikilothermous animals
V.The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished
I.In torpedo, the electric organs are capable of generating strong electric shock to paralyze the prey
II.Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming
III.Amphibian skin is moist and has thick scales
IV.Birds are poikilothermous animals
V.The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished
View answer and explanation
Correct option: B
I, II and V and true; III and IV are false
Option B (I, II and V and true; III and IV are false) is correct because torpedoes use electric organs to paralyze prey, bony fishes use various fins for swimming, mammals have mammary glands, amphibian skin is not thick and scaly, and birds are homeothermic (not poikilothermic).
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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?