Salient Features and Classification of Animals-nonchordate up to Phyla Level and Chordate up to Classes Level NEET Questions

Biology - Diversity in Living World

Salient Features and Classification of Animals-nonchordate up to Phyla Level and Chordate up to Classes Level MCQ Questions


13.

Which class of chordates is characterized by the presence of a cartilaginous skeleton?

NEET - 2020

A.

Chondrichthyes

B.

Osteichthyes

C.

Amphibia

D.

Reptilia

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ANSWER :

A. Chondrichthyes

14.
The body cavity in annelids is known as?
A.
Pseudocoelom
B.
Acoelom
C.
Hemocoel
D.
Coelom
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ANSWER :
D. Coelom
15.
The radula is a characteristic feature of which phylum?
A.
Echinodermata
B.
Arthropoda
C.
Mollusca
D.
Cnidaria
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ANSWER :
C. Mollusca
16.
The only phylum that exhibits pentaradial symmetry in adults is?
A.
Mollusca
B.
Arthropoda
C.
Echinodermata
D.
Annelida
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ANSWER :
C. Echinodermata
17.
The excretory organs of Platyhelminthes are?
A.
Nephridia
B.
Malpighian tubules
C.
Flame cells
D.
Green glands
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ANSWER :
C. Flame cells
18.
Nematodes are commonly known as?
A.
Flatworms
B.
Roundworms
C.
Segmented worms
D.
Spiny-skinned animals
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ANSWER :
B. Roundworms