Concepts, Pattern And Importance Of Biodiversity Test
Concepts, Pattern And Importance Of Biodiversity
This is online test 01 for CBSE class 12 Biology Biodiversity and Conservation (Concepts, pattern and importance of biodiversity).. There are 10 questions in this test with each question having around four answer choices.
Questions & Answers
1
Speciation maintains biodiversity :
- Aonly at species level
- Bonly at individual level
- Conly at community level
- Dboth at species level and community levelCorrect
2
Biodiversity is most frequently quantified as :
- Abiomass of species
- Bnumber of speciesCorrect
- Cstratification of species
- Denergy of trophic levels
3
Biological diversity level that doesn’t exist is:
- Aalpha
- Bgamma
- CdeltaCorrect
- Dbeta
4
When we compare the relationship between species richness and area for wide variety of taxa, the graph appears to be a :
- Acubic parabola
- Brectangular hyperbolaCorrect
- Ccubic hyperbola
- Drectangular parabola
5
Which article of the Constitution of India specifies that, "it shall be the duty of every citizen of India to protect and improve the natural environment including forests, lakes, rivers, and wildlife and to have compassion for living creatures."
- Aarticle 48
- Bnone of these
- Carticle 52-A
- Darticle 51-ACorrect
6
If all the members of a host species die then all its unique parasites also die off, representing:
- Aconservation
- Bextinction
- Cbiological control
- Dco-extinctionCorrect
7
If a sample area comprises of more number of taxonomically unrelated species, this will indicate:
- Aa more diverse sample areaCorrect
- Ba less diverse sample area
- Ca sample area with number of sub-species
- Da sample area with greater genetic diversity
8
When we will move away from the equator towards poles, we will find:
- Aa gradual increase in the species diversity
- Ba gradual increase in the ecosystem diversity
- Ca gradual decrease in the species diversityCorrect
- Dno change in the species diversity
9
In a wetland the primary factor controlling the environment and the associated plant and animal life will be:
- AwaterCorrect
- Blight
- Csoil
- Dtemperature
10
If we say, India has about 50,000 type of rice and 1000 types of varieties of mango what level of diversity it indicates:
- Aspecies diversity
- Bgenetic diversityCorrect
- Ccommunity diversity
- Decosystem diversity