Ecosystems and Biodiversity MCQs with Answers

admin4 weeks ago

0 3 1 minute read

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

Ecosystems and Biodiversity Online Quiz

By presenting 3 options to choose from, Ecosystems and Biodiversity 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 Ecosystems and Biodiversity Questions and Answers and click over the correct answer.

Test Name: Ecosystems and Biodiversity 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.

Ecosystems and Biodiversity

Please fill out the form before starting Quiz.

1 / 40

The process by which organisms regulate their internal conditions to maintain stability is called ____.

Homeostasis

Evolution

Adaptation

2 / 40

Which of the following is a primary producer in a terrestrial ecosystem?

Wolf

Grass

Deer

3 / 40

The variety of different species within an ecosystem is referred to as ____.

Biodiversity

Biomass

Biogeography

4 / 40

Which of the following is an example of an ecosystem service provided by wetlands?

Water filtration

Timber production

Air pollution

5 / 40

The major global ecosystem characterized by trees that shed leaves in the fall is the ____.

Grassland

Temperate deciduous forest

Desert

6 / 40

The term "ecosystem services" refers to ____.

Threats to ecosystems

Species interactions

Benefits humans derive from ecosystems

7 / 40

The type of succession that occurs on bare rock where no soil is present is called ____.

Tertiary succession

Primary succession

Secondary succession

8 / 40

The process by which nutrients are transferred between trophic levels in an ecosystem is called ____.

Biomagnification

Nutrient cycling

Energy flow

9 / 40

The process by which phosphorus is cycled through ecosystems is called ____.

Phosphorus cycle

Carbon cycle

Nitrogen cycle

10 / 40

The term "biome" refers to ____.

A specific habitat of a species

A single ecosystem

A large geographical region defined by its climate and vegetation

11 / 40

A keystone species is one that ____.

Has a disproportionately large impact on its ecosystem

Is endemic to a specific area

Is a primary producer

12 / 40

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

Temperature

Predators

Decomposers

13 / 40

The number of different species in a given area is called ____.

Species richness

Species evenness

Species dominance

14 / 40

The process by which water changes from liquid to vapor and back to liquid is called ____.

Water cycle

Nitrogen cycle

Carbon cycle

15 / 40

The term "biodiversity hotspot" refers to areas that ____.

Have high species diversity and are threatened

Are common habitats for migratory species

Are important for fossil preservation

16 / 40

The total amount of living matter within a given trophic level in an ecosystem is called ____.

Biodiversity

Biomass

Biome

17 / 40

The role an organism plays in its ecosystem, including its interactions with other organisms, is its ____.

Ecological niche

Biome

Habitat

18 / 40

The process by which nitrogen is converted between its various chemical forms is called ____.

Photosynthesis

Carbon fixation

Nitrogen fixation

19 / 40

The ecological pyramid that represents the energy flow in an ecosystem is called a ____.

Pyramid of energy

Pyramid of numbers

Pyramid of biomass

20 / 40

Which of the following is an example of a keystone species?

Sea otter

Seagull

Starfish

21 / 40

The top layer of the ocean where light penetration allows photosynthesis is the ____.

Photic zone

Hadal zone

Abyssal zone

22 / 40

The process by which carbon dioxide is taken up by plants during photosynthesis is ____.

Nitrogen fixation

Carbon fixation

Water fixation

23 / 40

The biome characterized by grasslands with scattered trees and a distinct rainy season is the ____.

Taiga

Chaparral

Savanna

24 / 40

The process by which plants release water vapor into the atmosphere is called ____.

Evaporation

Transpiration

Respiration

25 / 40

The relationship between plants and mycorrhizal fungi is an example of ____.

Commensalism

Mutualism

Parasitism

26 / 40

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

Tundra

Rainforest

Grassland

27 / 40

The place where an organism lives and obtains its resources is its ____.

Habitat

Niche

Range

28 / 40

The biome characterized by low temperatures, little precipitation, and treeless plains is the ____.

Savanna

Desert

Tundra

29 / 40

The movement of individuals out of a population is called ____.

Immigration

Migration

Emigration

30 / 40

The process by which nitrates are converted into nitrogen gas and released back into the atmosphere is ____.

Nitrification

Denitrification

Ammonification

31 / 40

The relationship between a flower and a bee that pollinates it is an example of ____.

Parasitism

Mutualism

Commensalism

32 / 40

The process by which carbon is cycled between organisms and the environment is called ____.

Water cycle

Carbon cycle

Nitrogen cycle

33 / 40

The zone in the ocean where photosynthesis can occur is called the ____.

Aphotic zone

Photic zone

Hadal zone

34 / 40

The study of the interactions between living organisms and their environment is called ____.

Biogeography

Genetics

Ecology

35 / 40

Which of the following is NOT a component of the nitrogen cycle?

Denitrification

Photosynthesis

Nitrification

36 / 40

The zone where freshwater meets saltwater is called ____.

Intertidal zone

Estuary

Wetland

37 / 40

The term "ecosystem" refers to ____.

A single species and its habitat

A group of interacting organisms

A community of organisms and their physical environment

38 / 40

The process by which water returns from the atmosphere to Earth's surface is ____.

Condensation

Evaporation

Precipitation

39 / 40

Which biome is characterized by low temperatures, permafrost, and low-growing vegetation?

Tropical rainforest

Desert

Tundra

40 / 40

Which of the following is an example of a decomposer in an ecosystem?

Herbivore

Carnivore

Fungi

Download Certificate of Quiz Ecosystems and Biodiversity

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

If you are interested to enhance your knowledge regarding English, Physics, Chemistry, and Computer please click on the link of each category, you will be redirected to dedicated website for each category.

admin4 weeks ago

0 3 1 minute read