25th Chapter

12th Class Biology Chapter 25 Test

Here you can prepare 12th Class Biology Chapter 25 Ecosystem Test. Click the button for 100% free full practice test.

Second Year Biology Chapter 25 Online MCQ Test for 2nd Year Biology Chapter 25 Ecosystem Preparation

This online test contains MCQs about following topics:.

- Introduction - Ecosystem - Succession - Biogeochemical Cycles

FSC Part 2 Biology Ch 25 Test
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Second Year Biology Chapter 25 Online MCQ Test for 2nd Year Biology Chapter 25 Ecosystem Preparation

Sr. # Questions Answers Choice
1 Study of single population's relationship to its environment is called.
  • A. Niche
  • B. Autecology
  • C. synecology
  • D. Predation
2 In 1917, term Niche was first proposed by American ornithologist named.
  • A. Charles Eltarf
  • B. Joseph Grinnell
  • C. Lamerck
  • D. Ernst Haeckel
3 The living organisms producing their own food.
  • A. Heterotrophs
  • B. Consumers
  • C. Green plants
  • D. Decomposers
4 Using the hardin-weinberg principle, which expression represents the frequency of the homo-zygous recessive genotype?
  • A. p<sup>2</sup>
  • B. 2p
  • C. q<sup>2</sup>
  • D. q
5 In Ecosystem, Second tropic level is altitude are.
  • A. Producer
  • B. Primary consumer
  • C. Secondary consumer
  • D. Tertiary consumer
6 The term niche was first proposedly joseph Grinnell an American.
  • A. Embryologist
  • B. Ecologist
  • C. Ornithologist
  • D. Physiologist
7 In xerosere, polytrichum and tortula represent.
  • A. Herbaceous stage
  • B. Moss stage
  • C. Follage lichen stage
  • D. Crustose lichen stage
8 Lichens are example of.
  • A. Parasitism
  • B. Predation
  • C. Commensalism
  • D. Mutualism
9 If population of predator increase then population of prey
  • A. Increases
  • B. Decreases
  • C. May increase
  • D. Has no effect or decrease
10 Moderate grazing is very helpful to maintain ecosystem.
  • A. Tundra
  • B. Grass land
  • C. Pond
  • D. Desert

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  • Asad Kalroo

    11 Mar 2024

    Thanks sir

    Like (1)
    Reply
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