Miscellaneous Questions Test
Miscellaneous Questions
This is online test 01 for CBSE class 12 Biology Organisms and Populations (Miscellaneous Questions).. There are 10 questions in this test with each question having around four answer choices.
Questions & Answers
1
Zone of Earth occupied by living organisms is called:
- ABiosphereCorrect
- BFlora and Fauna
- CBiome
- DEcosystem
2
Among hydrophytes which of the following xylem component remains absent?
- AvesselsCorrect
- Bboth vessels and parenchyma
- Cparenchyma
- Dcompanion cells
3
Success of an organism in nature can be determined by :
- Ameasuring population size and biomassCorrect
- Bcalculating carrying capacity
- Canalysing its interactions with environment
- Devaluating species importance in that ecosystem
4
Temperature is an environmental factor that does not affect :
- APhysiology
- BPhotoperiodsCorrect
- CGeographical distributions
- DEnzyme kinetics
5
At high altitudes our body compensates for deficiency of oxygen by :
- AReducing affinity of Hb for oxygen bindingCorrect
- BDecreasing rate of breathing
- CReducing the rate of respiration within cells
- DIncreasing white blood cell production
6
A gut parasite will not need :
- Aan alimentary canalCorrect
- Bresistant eggs
- Cadhesive organs
- Dhigh reproductive capacity
7
Unit of evolution and ecology is:
- ACommunity
- BEcosystem
- CPopulationCorrect
- DIndividual
8
To avoid decline or death of bacterial cells in culture we must:
- Arenew the culture mediumCorrect
- Bchange lab conditions
- Cobtain new bacterial cells with fresh inoculums
- Dprovide medicines into the medium
9
Negative acceleration phase is caused due to :
- Adecrease in environmental resistance
- Bincrease in environmental resistanceCorrect
- CPopulation cycles
- Dsaturation level
10
In deep lakes;littoral,limnetic and profundal zones represent:
- Atrophic organization
- Bcommunity stratificationCorrect
- Ccommunity stability
- Dcommunity dynamism