Ecosystems: The Living World - Interactive Learning Quizzes

Question 1

In an ecosystem, which of these is a living thing (biotic)?

Accepted Answer

A tree

Answer

A rock

Answer

Sunlight

Answer

Water

Question 2

Which of these is NOT a living part of an ecosystem?

Accepted Answer

Water

Answer

Plants

Answer

Animals

Answer

Fungi

Question 3

Which of these is NOT a fundamental part of an ecosystem?

Accepted Answer

Human activities

Answer

Living things (plants and animals)

Answer

Non-living things (water, air, and soil)

Answer

Energy flow

Question 4

Which of these is NOT found in an ecosystem?

Accepted Answer

Machines

Answer

Living things

Answer

Non-living things

Answer

Energy

Question 5

What is the primary reason for harmful changes to the balance of living and non-living factors in an ecosystem?

Accepted Answer

Pollution

Answer

Overpopulation

Answer

Natural disasters

Answer

Climate change

Question 6

Which of the following is NOT a vital component of an ecosystem?

Accepted Answer

Pollution

Answer

Living organisms

Answer

Non-living elements (e.g., water, air, soil)

Answer

Sunlight

Question 7

Which of the following interactions is NOT a symbiotic relationship?

Accepted Answer

A lion chasing and eating a zebra.

Answer

A bee pollinating a flower, benefiting both species.

Answer

A barnacle attaching to a whale, gaining a place to live without harming the whale.

Answer

A tapeworm living inside a human's intestine, harming the human while benefiting itself.

Question 8

Which of the following is a non-living part of an ecosystem?

Accepted Answer

Soil

Answer

Plants

Answer

Animals

Answer

Bacteria

Question 9

What is a key feature of an ecosystem?

Accepted Answer

It includes living and non-living elements that interact.

Answer

It is isolated from the outside world, with no energy or matter exchange.

Answer

It is found only in certain geographic locations.

Answer

It remains constant and unchanging over time.

Question 10

Which of the following is NOT a living part of an ecosystem?

Accepted Answer

Water

Answer

Animals

Answer

Plants

Answer

Microorganisms

Question 11

What is NOT a component of an ecosystem?

Accepted Answer

The weather

Answer

Living organisms (plants and animals)

Answer

Non-living factors (sunlight, water, soil)

Answer

Biodiversity

Question 12

Which of these is NOT a living thing found in a forest?

Accepted Answer

Rocks

Answer

Trees

Answer

Animals

Question 13

Which of the following is NOT a component of an ecosystem?

Accepted Answer

A fence

Answer

Living organisms

Answer

Non-living elements

Question 14

In a food chain, which organism is the producer?

Accepted Answer

Grass

Answer

Lion

Answer

Snake

Answer

Bacteria

Question 15

Which of the following is NOT considered a component of an ecosystem?

Accepted Answer

Sunlight

Answer

Plants

Answer

Animals

Answer

Water

Question 16

Within an ecosystem, which category exclusively encompasses living organisms?

Accepted Answer

Biotic

Answer

Abiotic

Answer

Artificial

Question 17

In an ecosystem, which of the following are primary consumers?

Accepted Answer

Organisms that eat plants or other producers for energy

Answer

Organisms that use photosynthesis to create their own food

Answer

Organisms that are always at the top of the food chain

Answer

Organisms that primarily consume other animals

Question 18

What is the main function of decomposers in an ecosystem?

Accepted Answer

To break down dead organisms and waste into simpler materials

Answer

To create oxygen through photosynthesis

Answer

To eat dead organisms and release energy

Answer

To give nutrients to plants

Question 19

Which of the following is a living organism found in an ecosystem?

Accepted Answer

Deer

Answer

Water

Answer

Rocks

Answer

Sunlight

Question 20

Which of the following is NOT a living part of an ecosystem?

Accepted Answer

Water

Answer

Plants

Answer

Animals

Answer

Bacteria

Question 21

Within an ecosystem, which group of organisms obtains energy by consuming other living organisms?

Accepted Answer

Consumers

Answer

Producers

Answer

Decomposers

Question 22

Which type of relationship occurs when both organisms benefit from their interaction?

Accepted Answer

Mutualism

Answer

Commensalism

Answer

Parasitism

Question 23

In a food web, which type of organism is always a producer?

Accepted Answer

Green plants

Answer

Carnivore

Answer

Herbivore

Question 24

An ecosystem is made up of living and non-living things. What is the term for the non-living parts of an ecosystem?

Accepted Answer

Abiotic factors

Answer

Producers

Answer

Consumers

Question 25

In an ecosystem, what is the primary function of decomposers?

Accepted Answer

Break down dead plants and animals, releasing nutrients back into the environment

Answer

Produce food for other animals using sunlight

Answer

Consume living plants and animals

Question 26

In an ecosystem, which of these is NOT a living thing?

Accepted Answer

Rocks

Answer

Plants

Answer

Animals

Question 27

Which part of an ecosystem is non-living?

Accepted Answer

Rocks

Answer

Producers

Answer

Consumers

Question 28

Within an ecosystem, what term describes a relationship where two different species mutually benefit from their interaction?

Accepted Answer

Mutualism

Answer

Parasitism

Answer

Commensalism

Question 29

Which type of symbiotic relationship involves a close, long-term association between two species, where both species gain benefits from the interaction?

Accepted Answer

Mutualism

Answer

Competition

Answer

Parasitism

Question 30

Within a food chain, which organism consumes both plants and animals?

Accepted Answer

Omnivore

Answer

Producer

Answer

Consumer

Answer

Decomposer

Question 31

Which of these is NOT a key part of an ecosystem?

Accepted Answer

Human activities

Answer

Living things

Answer

Non-living things

Question 32

Which of the following is a living part of an ecosystem?

Accepted Answer

Plant

Answer

Water

Answer

Sunlight

Question 33

What do ecological footprints measure?

Accepted Answer

The amount of land and resources needed to support a population

Answer

Only the impact of human activities on forests

Answer

Ecological footprints are not useful for assessing human impact on the environment

Answer

Only the direct impact of human activities on the environment

Question 34

What is the primary function of a keystone species within an ecosystem?

Accepted Answer

They have a disproportionate impact on the ecosystem relative to their numbers.

Answer

They are the most abundant species.

Answer

They are always the apex predators.

Answer

They are not crucial for ecosystem stability.

Question 35

Which of the following is **not** a stage of ecological succession?

Accepted Answer

Pioneer species

Answer

Primary succession

Answer

Secondary succession

Answer

Climax community

Question 36

Why are conservation and management strategies important for ecosystems?

Accepted Answer

They minimize human impact, protecting ecosystems and species.

Answer

They solely focus on preserving rare species, neglecting the overall ecosystem.

Answer

They are only needed for ecosystems facing immediate threats like deforestation.

Answer

They aim to boost tourism in natural areas.

Question 37

How do both living (biotic) and non-living (abiotic) factors affect where and how many organisms live in an ecosystem?

Accepted Answer

Both living and non-living factors can affect where and how many organisms live in an ecosystem.

Answer

Only living factors affect where and how many organisms live in an ecosystem.

Answer

Only non-living factors affect where and how many organisms live in an ecosystem.

Answer

Living factors affect where and how many organisms live in an ecosystem, but not the other way around.

Question 38

How can the idea of carrying capacity be used to manage animal populations in the wild?

Accepted Answer

Carrying capacity is the highest number of animals of a particular species that an ecosystem can support without harming the environment.

Answer

Carrying capacity only applies to species that are in danger of extinction.

Answer

To figure out the carrying capacity, you need to count all the animals of a particular species in an ecosystem.

Answer

Carrying capacity is not important for protecting animal populations in the wild.

Question 39

Which of these is NOT a benefit we get from nature?

Accepted Answer

Air pollution

Answer

Water purification

Answer

Soil conservation

Answer

Climate regulation

Question 40

What is a limitation of using species richness as a measure of biodiversity?

Accepted Answer

It doesn't consider the number of individuals of each species.

Answer

It's easy to identify all species in an ecosystem.

Answer

It includes the genetic diversity within a species.

Answer

It's not affected by the size of the area being studied.

Question 41

Climate change is a global phenomenon that can impact ecosystems in various ways. What are some potential positive and negative effects of climate change on ecosystems?

Accepted Answer

Positive: Creating new habitats for some species and increasing plant growth in some areas.

Accepted Answer

Negative: Causing species extinction and disrupting food chains.

Answer

Positive only.

Answer

Negative only.

Question 42

Ecosystem services are the benefits we get from natural ecosystems. Which of these is NOT an example of an ecosystem service?

Accepted Answer

Making products

Answer

Water purification

Answer

Carbon storage

Answer

Food and shelter for animals

Question 43

Invasive species can have severe ecological and economic impacts on ecosystems. How do invasive species disrupt ecosystem dynamics, and what strategies can be used to manage and control their spread?

Accepted Answer

Invasive species introduce diseases and parasites that native species are not immune to, disrupting ecosystem dynamics.

Accepted Answer

Invasive species often outcompete native species for resources, altering food webs and reducing biodiversity.

Answer

Invasive species have no significant impact on ecosystems because they eventually reach a population equilibrium.

Answer

The best strategy for controlling invasive species is to eradicate them completely, regardless of the cost.

Question 44

How should we balance human activities with the need to protect ecosystems? Consider the ethical issues, potential impacts, and effectiveness of conservation and restoration strategies.

Accepted Answer

Weighing ethical concerns, potential impacts, and the effectiveness of conservation and restoration strategies is crucial for managing ecosystems.

Answer

Limit human activities in ecosystems to prevent harm.

Answer

Ethical concerns are more important than the impacts of human actions on ecosystems.

Answer

Conservation and restoration strategies will always solve environmental issues.

Question 45

Which aspect of an ecosystem does NOT directly influence its overall health?

Accepted Answer

Factors outside the ecosystem's boundaries, like human activities

Answer

The number and variety of living organisms

Answer

The physical environment, such as temperature and sunlight

Answer

The flow of energy through the food chain

Question 46

In an ecosystem, the transfer of energy from one organism to another is known as:

Accepted Answer

Food chain

Answer

Nutrient cycle

Answer

Photosynthesis

Answer

Respiration

Question 47

Which organism in a food chain consumes plants but is itself consumed by carnivores?

Accepted Answer

Rabbit

Answer

Lion

Answer

Grass

Answer

Hawk

Question 48

The term that describes the range of different species found within an ecosystem is called:

Accepted Answer

Biodiversity

Answer

Habitat

Answer

Biome

Answer

Population

Question 49

Which factor does NOT directly affect the survival of organisms in an ecosystem?

Accepted Answer

The color of their fur

Answer

Availability of food and water

Answer

Temperature and humidity

Answer

Competition with other organisms

Question 50

The gradual change in the composition of an ecosystem over time is referred to as:

Accepted Answer

Succession

Answer

Evolution

Answer

Adaptation

Answer

Mutation

Question 51

Which action would have the most negative impact on an ecosystem?

Accepted Answer

Introducing non-native species

Answer

Planting trees

Answer

Reducing air pollution

Answer

Protecting endangered animals

Question 52

A diagram that shows the feeding relationships between organisms in an ecosystem is called:

Accepted Answer

Food web

Answer

Habitat map

Answer

Nutrient cycle

Answer

Energy pyramid

Question 53

Which of the following is NOT considered an abiotic factor in an ecosystem?

Accepted Answer

Plants

Answer

Light

Answer

Temperature

Answer

Water

Question 54

The primary energy source for most ecosystems on Earth is:

Accepted Answer

The sun

Answer

Wind

Answer

Chemical energy

Answer

Volcanic activity

Question 55

What do decomposers do in an ecosystem?

Accepted Answer

Break down dead plants and animals

Answer

Make food from sunlight

Answer

Eat other living things

Answer

Provide homes for other organisms

Question 56

Which of the following describes a keystone species?

Accepted Answer

A species that has a disproportionately large impact on its ecosystem relative to its abundance.

Answer

A species that serves as a primary food source for many other species.

Answer

A species that occupies the highest trophic level in its ecosystem.

Answer

A species that is introduced to an ecosystem and disrupts its balance.

Question 57

Which of these pairs of organisms does NOT have a symbiotic relationship?

Accepted Answer

Cat and mouse

Answer

Shark and remora fish

Answer

Mistletoe and oak tree

Answer

Clownfish and sea anemone

Question 58

Which of the following is NOT an example of an ecosystem?

Accepted Answer

Playground

Answer

Forest

Answer

Ocean

Answer

Desert

Question 59

Which organism in a food chain is responsible for producing its own food?

Accepted Answer

Producer

Answer

Consumer

Answer

Decomposer

Answer

Predator

Question 60

What is the primary function of decomposers in an ecosystem?

Accepted Answer

To break down dead plants and animals and recycle nutrients.

Answer

To produce oxygen through photosynthesis.

Answer

To consume other animals for energy.

Answer

To absorb sunlight and convert it into energy.

Question 61

What is the term used to describe a relationship where one organism benefits while the other is not affected?

Accepted Answer

Commensalism

Answer

Mutualism

Answer

Parasitism

Answer

Predation

Question 62

What is the term that describes the interactions between **living organisms and their physical surroundings**?

Accepted Answer

Ecosystem

Answer

Community

Answer

Habitat

Answer

Niche

Question 63

Which of the following is **not** an example of an ecosystem?

Accepted Answer

School

Answer

Forest

Answer

Ocean

Answer

Desert

Question 64

In a food chain, which organism is at the **top** of the chain?

Accepted Answer

Predators

Answer

Producers

Answer

Consumers

Answer

Decomposers