Endangered Organisms Test

Endangered Organisms

This is online test 02 for CBSE class 12 Biology Biodiversity and Conservation (Endangered organisms).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
International union of conservation of nature and natural resources is now called as
  • A
    World wide fund
  • B
    World conservation union
    Correct
  • C
    World population organization
  • D
    National union of conservation of nature.
2
A sacred lake is
  • A
    Suraj kund Lake of Haryana.
  • B
    Dal lake of Kashmir
  • C
    Chilka Lake of Orissa
  • D
    Khecheopalari Lake of Sikkim.
    Correct
3
The organisms that has been completely eliminated or died out from earth are called
  • A
    Critically endangered
  • B
    Endangered species
  • C
    Vulnerable species
  • D
    Extinct organisms
    Correct
4
The texa facing very high risk of extinction in the wild and can become extinct any moment in immediate future are called
  • A
    Endangered
  • B
    Vulnerable
  • C
    Date deficient
  • D
    Critically endangered
    Correct
5
Rare endangered and endemic taxa can be found intact and flourishing in
  • A
    Oases
  • B
    Buffer zone of biosphere reserves
  • C
    Tropical forests
  • D
    Sacred grooves.
    Correct
6
Indeterminate species are those species which are in danger but
  • A
    Are less in number.
  • B
    Reason of extinction is known.
  • C
    Are not reproducing in current habitat.
  • D
    Reason of extinction is not known.
    Correct
7
Threatened species list includes
  • A
    Only vulnerable and lower risk species
  • B
    Critically endangered, endangered, vulnerable and lower risk species.
    Correct
  • C
    Only critically endangered and endangered species.
  • D
    Only critically endangered species.
8
Vulnerable species are those species
  • A
    Presently the population is sufficient and stable.
  • B
    Presently the population is sufficient but is undergoing depletion.
    Correct
  • C
    Presently population is insufficient but undergoing addition.
  • D
    Presently population is insufficient and undergoing depletion.
9
The purpose of preparation of red list is to i. Provide awareness to the degree of threat to biodiversity. ii. Preparing conservation priorities and help in conservation action. iii. Identification and documentation of species at high risk of extinction.
  • A
    Statement i and ii are correct.
  • B
    All statements are incorrect.
  • C
    All statements are correct.
    Correct
  • D
    Statement ii and iii are correct.
10
Assertion: Endangered species are facing high risk of extinction in the wild in the near future. Reason: The number of endangered species are decreasing due to loss of habitat, excessive predation or poaching.
  • A
    Assertion is not explained by reason correctly.
  • B
    Assertion is correct but reason is incorrect.
  • C
    Both assertion and reason are correct.
    Correct
  • D
    Both assertion and reason are incorrect.