Endangered Organisms Test

Endangered Organisms

This is online test 01 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
Species which suffered a near-extinction from ingesting the carrion of diclofenac-treated cattle is/are:
  • A
    only white rumped vulture
  • B
    Himalayan Wolf and Bengal tiger
  • C
    Bengal tiger and white rumped vulture
    Correct
  • D
    Striped Hyena and white rumped vulture
2
Read the following statements : a) India is considered as one of the 12 mega diversitycenters of the world. b) India contributes to a high percentage of global species diversity.
  • A
    both statements are wrong.
  • B
    both statements are correct.
    Correct
  • C
    Statement a) is correct but b) is wrong.
  • D
    Statement b) is correct but a) is wrong.
3
Wild animals : i) Frequently breed in Zoos. ii) Reproductive capacity is lowered if area of free movement is reduced.
  • A
    both statements are correct.
  • B
    Statement i. is correct but ii.is wrong.
  • C
    both statements are wrong.
  • D
    Statement ii.is correct but i. is wrong.
    Correct
4
Surveys and statistical studies have reported that endemic species show:
  • A
    less variation
    Correct
  • B
    high genetic diversity
  • C
    more variation
  • D
    spread only within a limited area
5
Interpret from the following graph :
Question 5 figure 1
  • A
    Immigration rates are greater on far islands than near islands
  • B
    Extinction rates are unaffected
    Correct
  • C
    Immigration rates are unaffected
  • D
    Extinction rates are greater than immigration rates
6
If a species experiences a 90 percent decline over 10 years (or three generations), would be classified as :
  • A
    critically endangered
    Correct
  • B
    vulnerable
  • C
    data deficient
  • D
    endangered
7
Select the group which represents only critically endangered species (as per 2008 red list):
  • A
    African elephant, red panda, polar bear & Giant panda
  • B
    Giant panda, loggerhead turtle, snow leopard & leatherback turtle
  • C
    Amur Leopard, cross river gorilla, hawksbill turtle & leatherback turtle
    Correct
  • D
    Cross river gorilla, arctic fox, mountain gorilla &amur leopard
8
Which of the following is a vulnerable species(as per 2008 red list):
  • A
    Monarch butterfly
  • B
    South China tiger
  • C
    Brown bear
  • D
    Polar bear
    Correct
9
A category containing those species whose members survive only in captivity or as artificially supported populations far outside their historical geographic range is grouped under:
  • A
    Near threatened
  • B
    Rare species
  • C
    Extinct in the Wild
    Correct
  • D
    Critically endangered
10
How many species in the world are facing threat of extinction?
  • A
    Less than 1,550
  • B
    More than 50,500.
  • C
    No more species are endangered.
  • D
    More than 15,500.
    Correct