Samacheer Kalvi Class 12 Organisms and Population Questions - 1
Question: 1
The relationship between sucker fish and shark is
(A) Commensalism
(B) Competition
(C) Predation
(D) Parasitism
Ans: A
Commensalism
Question: 2
Maximum reproductive capacity of an organism under favourable condition is referred as
(A) Biotic potential
(B) Natality
(C) Fecundity
(D) Carrying capacity
Ans: A
Biotic potential
Question: 3
All populations in a given physical area are defined as
(A) Biome
(B) Ecosystem
(C) Territory
(D) Biotic factors
Ans: A
Biome
Question: 4
Competition between species leads to
(A) Extinction
(B) Mutation
(C) Amensalism
(D) Symbiosis
Ans: A
Extinction
Question: 5
Animals that can move from fresh water to sea called as
(A) Anadromous
(B) Catadromous
(C) Eurythermal
(D) Stenothermal
Ans: B
Catadromous
Question: 6
The study dealing with animal behaviour is called as
(A) Ethology
(B) Ecology
(C) Euthenics
(D) Pedogenesis
Ans: A
Ethology
Question: 7
Organisms which can survive a wide range of temperature are called
(A) Eurytherms
(B) Ectotherms
(C) Endotherms
(D) Stenotherms
Ans: A
Eurytherms
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