Miscellaneous Questions Test

Miscellaneous Questions

This is online test 01 for CBSE class 12 Biology Ecosystem (Miscellaneous Questions).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Transducers is the term used for :
  • A
    Green plants
    Correct
  • B
    Carnivores
  • C
    Decomposers
  • D
    Herbivores
2
Which of the following is not a layer found in lakes?
  • A
    lentic zone
    Correct
  • B
    profundal zone
  • C
    limnetic zone
  • D
    littoral zone
3
Dead parts of plants and animals that fall on the earth surface constitute:
  • A
    Litter
    Correct
  • B
    Humus
  • C
    Detritus
  • D
    Detritivore
4
Among desert plants, which of the following will become a limiting for primary production:
  • A
    chlorophyll
  • B
    temperature
  • C
    light
  • D
    water
    Correct
5
Which of the following may cause algal blooms in the aquatic system:
  • A
    sulphur
  • B
    All the these
  • C
    phosphorus
    Correct
  • D
    carbon
6
Sparrow is :
  • A
    both \(1^\circ \) consumer and \(2^\circ \)consumer
    Correct
  • B
    only \(1^\circ \)consumer
  • C
    only \(2^\circ \)consumer
  • D
    \(3^\circ \)consumer
7
Researchers suggest that early human civilization developed in :
  • A
    chapparal
  • B
    tundra and taiga
  • C
    savannah and prairies
    Correct
  • D
    evergreen and deciduous forests
8
We can save those water reservoirs which are useful for irrigation ,by:
  • A
    providing conditions suitable for secondary succession
  • B
    checking biotic succession
    Correct
  • C
    allowing eutrophication
  • D
    allowing silting
9
In a rain shadow area biome is represented by:
  • A
    Taiga
  • B
    Desert
    Correct
  • C
    Tundra
  • D
    Evergreen forests
10
The metabolic process which causes a reduction in gross primary production:
  • A
    transportation
  • B
    digestion
  • C
    respiration
    Correct
  • D
    excretion