GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
3. Do not refresh or back page.
4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
Which of the following are the abiotic component ?
Wind
Soil
Climate
All of these.
2
An ecosystem consists of ____________________________________________
Green plants and animals
Green plants and decomposers
Producers and consumers
Green plants, animals, decomposers and abiotic environment
3
Environment consists of
Land, air, water
Light, temperature and rainfall
Plants, animals and microbes
All the above
4
An ecosystem must have a continous external source of _________________
Food
Minerals
Energy
Water
5
absorbs some of the ______________ that radiates from the surface of earth to space.
Ozone
Heat
Ultraviolet light
Smog
6
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the ____________________
Food web
Ecological pyramid
Ecosystem
Food chain
7
Arboreal life is that where animals live ________ .
On trees
On lands
In water
Both in land and water
8
A food chain consists of __________________
Producers only
Consumers only
Decomposers only
9
The green grass at the bottom of the food chain is also called _____________________
Producer
Primary consumer
Secondary consumer
Tertiary consumer
10
The flow of energy in an ecosystem occurs _______________
In any direction
From lower to higher level
From higher to lower level
In a cyclic way
11
Flow of energy in an ecosystem is always _________________
Unidirectional
Bidirectional
Multi-directional
No specific direction
12
Assertion : - Abiotic component of an ecosystem involves cycling of material flow of energy.
Reason : - This is essential to keep biotic factors alive.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
If Assertion is correct but Reason is incorrect
If Assertion is incorrect but Reason is correct
13
Most food chains are composed of ___________________
One-ten levels
Ten-twelve levels
Eight-ten levels
Three-four levels
14
Assertion : In an ecosystem, the function of producers is to convert organic compounds into inorganic compounds.
Reason : Green plants, the producers, transduce solar energy.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
If Assertion is correct but Reason is incorrect.
If Assertion is incorrect but Reason is correct.
15
As a biologist, if you interested in the study of the interaction of organisms with each other and the environment your sub speciality would be __________________
Zoology
Ecology
Botany
Herpetology