Integrated Guidance Programme of General Studies for IAS
(Pre) - 2013
Subject - General Science
Chapter - The Nervous System
1. Consider the following statements
i) Coelenterates, cnidarians & Echinoderms have their neurons organised into a
ii) These creatures have radial symmetry & lack a head.
iii) Although lacking a brain a central nervous system they are capable of
which of the above statements is/are false?
a) i only
b) ii & iii only
c) All of the above
d) None of the above
2. Consider the following statements :
i) Flatworms have neurons associated into cluster known as ganglia which form a
ii) Vertebrates have a spinal cord in addition to a more developed brain.
iii) Chordates have a dorsal rather than what nervous system.
which of the following is/are true ?
a) i & iii only
b) ii only
c) iii only
d) All of the above
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