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


1.
The arrangement of cells into two embryonic layers (ectoderm and endoderm) is called:
A.
Triploblastic organisation
B.
Diploblastic organisation
C.
Pseudocoelomate organisation
D.
Acoelomate organisation
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ANSWER :
B. Diploblastic organisation
2.
Triploblastic animals have which embryonic germ layers?
A.
Only ectoderm
B.
Ectoderm and endoderm
C.
Ectoderm, mesoderm and endoderm
D.
Only mesoderm
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ANSWER :
C. Ectoderm, mesoderm and endoderm
3.
The body cavity lined by mesoderm is called:
A.
Pseudocoelom
B.
Coelom (true)
C.
Blastocoel
D.
Archenteron
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ANSWER :
B. Coelom (true)
4.
Animals in which the body cavity is not lined by mesoderm but mesoderm is present as scattered pouches between ectoderm and endoderm are called:
A.
Coelomates
B.
Acoelomates
C.
Pseudocoelomates
D.
Triploblastic
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ANSWER :
C. Pseudocoelomates
5.
Animals in which the body cavity is absent are called:
A.
Coelomates
B.
Pseudocoelomates
C.
Acoelomates
D.
Schizocoelomates
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ANSWER :
C. Acoelomates
6.
Cell aggregate level of organisation is found in:
A.
Coelenterates
B.
Sponges (Porifera)
C.
Platyhelminthes
D.
Annelids
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ANSWER :
B. Sponges (Porifera)