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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
1
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Understanding
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(S-I) : Ctenophores reproduce by sexual method of reproduction.
(S-II): In Ctenophores fertilisation is internal with indirect development.
(S-II): In Ctenophores fertilisation is internal with indirect development.
View answer and explanation
Correct option: B
S-I is true and S-II is false
Option B is correct because Ctenophores reproduce sexually, but fertilization is external with indirect development.
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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?