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12th Biology Weekly Test - 1 ( Zoology - Organisms and Population )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test - 1 ( Zoology - Organisms and Population )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The word 'niche' was first used by ________ .

Charles Elton
Van't Hoff
Bergmann
Jordon

Diapause is a type of response classified under _________ .

Suspend
Migrate
Conform
Regulate

Which of the following is an r-species

Human
Insects
Rhinoceros
Whale

Competition between species leads to

Extinction
Mutation
Amensalism
Symbiosis

Type of response in hibernation and aestivation.

Suspend
Regulate
Migrate
Conform

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

Which of the following is correct for r-selected species

Large number of progeny with small size
large number of progeny with large size
small number of progeny with small size
small number of progeny with large size

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

Predation
Mutualism
Amensalism
Commensalism

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

Relative abundance
Ecological density
Crude density
Population density

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

Mutualism
Amensalism
Commensalism
parasitism

Part - B

Generic 2 - Answer All Question

Define carrying capacity.

What is amensalism?

What is the significance of lateral-line system in fishes'?

Name the physiological adaptations seen in animals.
State Bergmann's rule.

What is a Habitat?

Part - C

Generic 3 - Answer All Question

Eurythermy is advantag~ous to the animal. Justify .
How is the camel able to withstand desert conditions?

Differentiate Natality and Mortality

Differentiate J and S shaped curve

How are tropical forests classified?

Define migration.

Part - D

Generic 5 - Answer All Question

Differentiate between Tundra and Taiga Biomes.

Describe Growth Models/Curves.

List the differences between R selected and K selected species.
List the adaptations seen in terrestrial animals

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