Ecological Succession Test

Ecological Succession

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

Questions & Answers

1
Xerosere that begins on sand is called:
  • A
    psammosere
    Correct
  • B
    hydrosere
  • C
    sandosere
  • D
    lithosere
2
Which of the following represents an incorrect feature of ecological succession:
  • A
    both A & B
  • B
    leads from less to very high biodiversity
  • C
    it results into gradual decrease in the biomass
    Correct
  • D
    progresses towards a state of stability
3
The individual transitional communities to inhabit an area are commonly called as:
  • A
    Climax stages
  • B
    Sere
  • C
    Seral stages
    Correct
  • D
    Pioneer communities
4
Primary consumer category in aquatic &/or terrestrial ecosystem will include :
  • A
    Water insects, rabbits, frogs and snails
  • B
    Frog tadpole, goat, bacteria and fungi
  • C
    Zooplanktons, frog tadpole, snails and tortoise
    Correct
  • D
    Zooplanktons, frog, grasshoppers and hydra
5
Examples of local and global nutrient cycles will be:
  • A
    Carbon and phosphorus cycles respectively
  • B
    Carbon and nitrogen cycles respectively
  • C
    Phosphorus and carbon cycles respectively
    Correct
  • D
    Phosphorus and calcium cycles respectively
6
Successive transitional communities will show:
  • A
    100% energy transfer
  • B
    increase in number of species
    Correct
  • C
    increase in instability
  • D
    decrease in the biomass
7
The ecological niche of an organism will not represent:
  • A
    its functional role in the ecological system
  • B
    its specialization
  • C
    range of conditions that it can tolerate
  • D
    resources it cannot utilize
    Correct
8
In which of the following places, succession will occur in short time:
  • A
    on a bare rock
  • B
    in a small oligotrophic lake
  • C
    in heavily overgrazed pasture
    Correct
  • D
    area exposed by a retreating glacier
9
Phosphorus will not make part of:
  • A
    teeth
  • B
    ATP
  • C
    nucleic acids
  • D
    amino acids
    Correct
10
An ecological succession on bare land proceeds towards:
  • A
    Increasing wetness
    Correct
  • B
    None of these
  • C
    Decreasing wetness
  • D
    Increasing dryness