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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
1
Medium
1 of 1
Understanding
+4 | -1
S-1: Water vascular system is unique to echinoderms.
S-2: Water vascular system is derived from coelom.
S-2: Water vascular system is derived from coelom.
View answer and explanation
Correct option: B
Statement-1 is true, statement-2 is true, statement-2 is not correct explanation for statement-1.
Option B is correct because while both statements are true, the water vascular system's uniqueness to echinoderms isn't directly explained by its coelomic origin.
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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?