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

Question: 2

Maximum reproductive capacity of an organism under favourable condition is referred as

(A) Biotic potential

(B) Natality

(C) Fecundity

(D) Carrying capacity

Question: 3

All populations in a given physical area are defined as

(A) Biome

(B) Ecosystem

(C) Territory

(D) Biotic factors

Question: 4

Competition between species leads to

(A) Extinction

(B) Mutation

(C) Amensalism

(D) Symbiosis

Question: 5

Animals that can move from fresh water to sea called as

(A) Anadromous

(B) Catadromous

(C) Eurythermal

(D) Stenothermal

Question: 6

The study dealing with animal behaviour is called as

(A) Ethology

(B) Ecology

(C) Euthenics

(D) Pedogenesis

Question: 7

Organisms which can survive a wide range of temperature are called

(A) Eurytherms

(B) Ectotherms

(C) Endotherms

(D) Stenotherms