Biology Quizzes

Ecosystem MCQs with Answers

Welcome to the Ecosystem MCQs with Answers. In this post, we have shared Ecosystem Online Test for different competitive exams. Find practice Ecosystem Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Ecosystem.

Ecosystem Online Quiz

By presenting 3 options to choose from, Ecosystem Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Ecosystem Questions and Answers and click over the correct answer.

  • Test Name: Ecosystem MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

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Ecosystem MCQs

Ecosystem MCQs

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1 / 40

Which of the following is a primary source of phosphorus for ecosystems?

2 / 40

Which biome is characterized by low temperatures, little precipitation, and permafrost?

3 / 40

Which biome is characterized by grasses, scattered trees, and a lack of precipitation?

4 / 40

What is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen?

5 / 40

What is the difference between a food chain and a food web?

6 / 40

What is a producer in an ecosystem?

7 / 40

Which of the following is an example of an abiotic factor in an ecosystem?

8 / 40

Which of the following is a greenhouse gas that contributes to global warming?

9 / 40

Which of the following is an example of a natural ecosystem service?

10 / 40

What is the term for the role of an organism within its ecosystem?

11 / 40

Which of the following is a measure of the total amount of dissolved salts in water?

12 / 40

What is the term for the study of the interactions between organisms and their environment?

13 / 40

What is the term for the process by which carbon dioxide is released into the atmosphere by burning fossil fuels?

14 / 40

What is the trophic level of an organism that feeds directly on producers?

15 / 40

What is the term for the number of different species in a given area?

16 / 40

What is the term for the process by which nitrogen compounds are converted back into nitrogen gas by bacteria?

17 / 40

Which of the following is a limiting factor for plant growth in most ecosystems?

18 / 40

What is the term for the total mass of living organisms in a given area?

19 / 40

What is the term for the process by which nutrients are returned to the soil from dead and decaying organisms?

20 / 40

What is an ecosystem?

21 / 40

What is the term for the gradual process of change and replacement of the types of species in a community?

22 / 40

What is the term for the area where an organism lives and obtains its resources?

23 / 40

Which of the following is an example of a biotic factor in an ecosystem?

24 / 40

What is a decomposer in an ecosystem?

25 / 40

What is the term for the process by which organisms regulate their internal environment to maintain stability?

26 / 40

What is the term for the process by which water evaporates from the leaves of plants?

27 / 40

What is the term for the process by which excess nutrients in water lead to increased plant growth and oxygen depletion?

28 / 40

What is the term for the process by which water moves from the atmosphere to the Earth's surface?

29 / 40

What is the trophic level of an organism that feeds on primary consumers?

30 / 40

What is the term for the process by which nitrogen gas is converted into ammonia by bacteria?

31 / 40

What is the primary source of energy in most ecosystems?

32 / 40

Which of the following is a characteristic of a stable ecosystem?

33 / 40

What is the term for all the living organisms in an ecosystem?

34 / 40

Which of the following is a human activity that can disrupt ecosystems?

35 / 40

What is a consumer in an ecosystem?

36 / 40

What is the trophic level of an organism that feeds on secondary consumers?

37 / 40

What is the term for the process by which bacteria convert ammonia into nitrites and then into nitrates?

38 / 40

What is the term for the process by which pollutants accumulate in the tissues of organisms as they move up the food chain?

39 / 40

Which biome is characterized by dense forests with high levels of precipitation?

40 / 40

What is the term for the process by which water moves through the soil and into groundwater?

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