NEET UG BIOLOGY MCQ: ANIMAL KINGDOM

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Which of the following statements are applicable to birds ?

a) Endoskeleton is made up of either cartilage or bone

b) Crop and gizzard are the additional chambers in digestive tract

c) Poikilothermic animals

d) Air sacs connected to lungs supplement respiration

e) Fertilisation may be external (or) internal

View answer and explanation

Correct option: B

b and d only

Option B (b and d only) is correct because birds have crop and gizzard as additional chambers in their digestive tract, and air sacs connected to lungs supplement respiration.

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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.
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Tapeworm, Roundworm, Hookworm, Threadworm

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