Biology - Comprehensive Mock Test 127

Question 1261 Medium

.......... have a sucking and circular mouth without jawas?

A) lamprey B) scoliodon C) catla D) rohu

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Question 1262 Medium

Vertebrates have ventral muscular heart with ________ chambers?

A) two B) three C) four D) all above

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Question 1263 Easy

Notochord is present only in larval tail ?

A) urochordata B) cephalochordata C) vertebrata D) protochordates

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Question 1264 Medium

The notochord is replaced by a ________ vertebral column in chordal-G?

A) cartilaginous B) bony C) both of a & b D) none of those

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Question 1265 Easy

Into how many sub-phylum chordata is divided ?

A) two B) four C) six D) three

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Question 1266 Medium

The body is cylindrical and composed of ________ in Hemichordata?

A) Proboscis B) collar C) trunk D) all the above

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Question 1267 Easy

Water vascular system which help in ________?

A) Cocomotion B) capture and transport of food C) respiration D) all above

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Question 1268 Easy

An excretory system is absent in?

A) Sepia B) Crab C) Starfish D) Earthworm

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Question 1269 Medium

In which of the following phyla, while the adult shows radial symmetry, the larva shows bilateral symmetry ?

A) Mollusca B) Echinodermata C) Arthropoda D) Annelida

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Question 1270 Medium

The mouth contains a file-like rasping organ for fooding, called ________ in Mollusco?

A) radulla B) medulla C) Gizzard D) teeth

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