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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
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Arrange the following in sequence from ventral to dorsal in a typical chordate
A) Notochord B) Nerve cord C) Gut D) Heart
A) Notochord B) Nerve cord C) Gut D) Heart
View answer and explanation
Correct option: A
D, C, A, B
Option A (D, C, A, B) is correct because in chordates, the heart is most ventral, followed by the gut, then the notochord, and finally the nerve cord which is most dorsal.
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Which of the following statements are true for the phylum – Chordata?
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?
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?