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. ICZN is applicable for
A) Animals only B) Animals and Protists
C) Animals, Protists and Viruses D) Animals, Protists and Bacteria

. Retrogressive metamorphosis denotes
A) Development of complex adult from simple larva
B) Development from egg to adult with all the four stages
C) Development of simple adult from complex larva
)

D) Development of sexual maturity at larval stage

. Aristotle’s lantern is
A) Masticatory apparatus of sea urchin
B)
C) Rasping organ of aquatic snail
D)

Excretory organ of octopus

Bioluminescent organ of insects

. Which one is habituation in case of a caged dog ?
A) Wagging tail to familiar visitors
B) Salivation at feeding time

C) Stop barking at a regular visitor
)

D) Become restless when not released at usual time

. During flood, few fishes of a river were separated from the main population into a
pond and subsequently established a new population there. This is an example of

A) Bottle neck effect B) Founder effect
C) Peripatric effect D) Natural selection

. Which among the following is not a measure of central tendency ?
A) Mean B) Mode
C) Median D) Mean Deviation

. Zoogeographically, Madagascar belongs to
A) Palaeartic region B) Nearctic region
C) Oriental region D) Ethopian region