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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
1
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Understanding
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(S-I): Hemichordata was earlier considered as a sub-phylum under phylum Chordata.
(S-II): Now Hemichordata placed as separate phylum under non chordata.
(S-II): Now Hemichordata placed as separate phylum under non chordata.
View answer and explanation
Correct option: A
Both statements are true
Option A (Both statements are true) is correct because Hemichordata was previously considered a sub-phylum under Chordata, but is now recognized as a separate phylum within the non-chordates.
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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?