NEET UG BIOLOGY MCQ: ANIMAL KINGDOM

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All of the following peculiar features of Platyhelminthes can differentiate between free – living and parasitic forms except

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Correct option: A

Dorsoventrally flattened body

Option A (Dorsoventrally flattened body) is correct because dorsoventrally flattened body is a characteristic of all Platyhelminthes, both free-living and parasitic, while the presence of hooks and suckers, and nutrient absorption through the body surface are adaptations specific to parasitic forms.

More Questions from ANIMAL KINGDOM

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Which one of the following in birds, indicates their reptilian ancestry The presence of the tube feet is a characteristic feature of the phylum Respiratory organs of Saccoglossus are 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?