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12th Biology Weekly Test - 4 (Zoology - Organisms and Population )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test - 4 (Zoology - Organisms and Population )-Aug 2020

Time : 12.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Type of response in hibernation and aestivation.

Suspend
Regulate
Migrate
Conform

"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

Some organisms are able to maintain homeostasis by physical means _______

Conform
Regulate
Migrate
Suspend.

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

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

All populations in a given physical area are defined as

Biome
Ecosystem
Territory
Biotic factors

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 word 'niche' was first used by ________ .

Charles Elton
Van't Hoff
Bergmann
Jordon

Organisms which can survive a wide range of temperatuer are called

Ectotherms
Eurytherms
Endotherms
Stenotherms

Predation and parasitism are which type of interactions?

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

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

Light
Temperature
Water
Soil

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

Suspend
Regulate
Migrate
Conform

Nuts are eaten by birds and squirrels. This is an example of an interaction called _______

Commensalism
Mutualism
Amensalism
Competition

Given below are some examples for population interactions. Which among the following shows mutualism?

Lion and deer
Man and tape worm
Hermit crab and sea-anemone
Sucker fish and shark

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

Competition
Mutualism
Commensalism
Amensalism

Competition between species leads to

Extinction
Mutation
Amensalism
Symbiosis

The relationship between sucker fish and shark is__________

Competition
Commensalism
Predation
Parasitism.

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

Mutualism
Amensalism
Commensalism
parasitism

Which of the following is an r-species

Human
Insects
Rhinoceros
Whale

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