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12th Biology Monthly Test - 2 ( Zoology - Organisms and Population )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 2 ( Zoology - Organisms and Population )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Diapause is a type of response classified under _________ .

Suspend
Migrate
Conform
Regulate

The interaction in nature, where one gets benefit on the expense of other is...

Predation
Mutualism
Amensalism
Commensalism

Identify the response under which 'Osmotic balance' can be classified.

Suspend
Regulate
Migrate
Conform

Organisms which can survive a wide range of temperatuer are called

Ectotherms
Eurytherms
Endotherms
Stenotherms

Some organisms are able to maintain homeostasis by physical means _______

Conform
Regulate
Migrate
Suspend.

The word 'niche' was first used by ________ .

Charles Elton
Van't Hoff
Bergmann
Jordon

Predation and parasitism are which type of interactions?

(+,+)
(+, O)
(--, --)
(+, --)

Competition between species leads to

Extinction
Mutation
Amensalism
Symbiosis

Animals destroyed at the feet of elephants is an example of _______

Mutualism
Amensalism
Commensalism
parasitism

Birds sitting on cows to eat insects is an example of _______

Competition
Mutualism
Commensalism
Amensalism

Which of the following is a behavioural adaptation?

Thickfur
camouflage
Sharp canines
Migration

1000 fish in the volume of water in the pond indicates __________

Relative abundance
Ecological density
Crude density
Population density

Van't Hoffs rule describes the impact of _______ on the environment.

Light
Temperature
Water
Soil

Match the following and choose the correct combination from the options given below.

Column I Column II

A. Mutalism 1. Lion and deer

B. Commensalism 2. Round worm and man

C. Parasitism 3. Birds compete with squirrels for nuts

D. Competition 4. Sea anemone on hermit crab

E. Predation 5. Bernacles attached to Whales.

A- 4, B-5, C-2, D –3, E-1
A- 3, B-1, C-4, D – 2, E-5
A- 2, B-3, C-1, D – 5, E-4
A- 5, B-4, C-2, D – 3, E-1

"Birds and mammals attain greater body size in colder regions than warmer regions.''-
Choose the correct option.

Bergmann's rule
Jordon's rule
Sewall wright effect
Allen's rule

Part - B

Generic 2 - Answer All Question

State Jordon's rule

State Bergmann's rule.
What is soil permeability?

Define biotic potential.

What is Zero Stress?

Define carrying capacity.

What are Stenothermst?

What are ecological equivalents?

Part - C

Generic 3 - Answer All Question

Define migration.

What is phototaxis?

Draw a sketch to show J and S shaped growth form of a population.

Differentiate J and S shaped curve

What is diapause?

What are cryptic animals?
What is phototropism?

Draw a diagram to show age distribution in a increasing population.

Part - D

Generic 5 - Answer All Question

Rainfall shortage affects the normal lift In desert biome scanty rainfall occurs. Bm many organisms are living there. Discuss ~ characteristics of desert biomes.

List out the properties of soil.
List the adaptations seen in terrestrial animals

Differentiate between Tundra and Taiga Biomes.

List the differences between R selected and K selected species.

Give an account of the properties of soil.

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