All populations in a given physical area are defined as

(a)

Biome

(b)

Ecosystem

(c)

Territory

(d)

Biotic factors

Competition between species leads to

(a)

Extinction

(b)

Mutation

(c)

Amensalism

(d)

Symbiosis

Which of the following is an r-species

(a)

Human

(b)

Insects

(c)

Rhinoceros

(d)

Whale

The relationship between sucker fish and shark is__________

(a)

Competition

(b)

Commensalism

(c)

Predation

(d)

Parasitism.

Animals that can move from fresh water to sea called as______

(a)

Stenothermal

(b)

Eurythermal

(c)

Catadromous

(d)

Anadromous

Some organisms are able to maintain homeostasis by physical means _______

(a)

Conform

(b)

Regulate

(c)

Migrate

(d)

Suspend.

Greek word from which the term 'ecology' is derived ______________

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Eikos

Movement of an organism in response to light

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pbototaxis

Scientist who coined the term 'niche' ___________

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Charles Elton

Zone of permafrost ______________

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tundra

Type of forest in taiga ____________

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coniferous forest

Taiga

(1)

Salmon

Temperature

(2)

Maple, Oak

Grassland

(3)

Willow, Maple, Oak

Stenotherm

(4)

Lizards

Anadromous migration

(5)

Wild oats

What is a Habitat?

Define ecological niche.

What is Pedogenesis?

What is soil permeability?

Differentiate between Eurytherms and Stenotherms.

State Allen's rule.

Give the characters of a Biome ?

What are the ways by which organisms respond to abiotic factors?

Differentiate Natality and Mortality

Give an account of population regulation

Differentiate between Tundra and Taiga Biomes.

Describe Population Age Distribution