Ecosystems: Dive into the Interconnectedness of Life and Environment

Question 1

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

Accepted Answer

Forces like gravity

Answer

Living organisms

Answer

Non-living factors

Answer

Food webs

Question 2

In a food chain, what is the relationship between a fox and a rabbit?

Accepted Answer

Predator and prey

Answer

Producer and consumer

Answer

Herbivore and carnivore

Answer

Mutualist and parasite

Question 3

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

Accepted Answer

A food web is more complex, showing multiple connections.

Answer

A food chain is more complex, showing all possible connections.

Answer

They are essentially the same thing.

Answer

There is no difference.

Question 4

Which of these is not a feature of an abiotic factor within an ecosystem?

Accepted Answer

Animals

Answer

Sunlight

Answer

Temperature

Answer

Water

Question 5

In a food chain, how does the energy flow?

Accepted Answer

Producer → Consumer → Decomposer

Answer

Decomposer → Consumer → Producer

Answer

Consumer → Producer → Decomposer

Answer

Decomposer → Producer → Consumer

Question 6

Which of these relationships is an example of mutualism between two organisms?

Accepted Answer

A bee collecting nectar from a flower and pollinating it

Answer

A lion hunting and eating a zebra

Answer

A tapeworm living in a human's digestive system and absorbing nutrients

Answer

A fungus growing on the roots of a tree and absorbing nutrients from it

Question 7

What is the name for a group of the same species living in the same area?

Accepted Answer

Population

Answer

Community

Answer

Ecosystem

Answer

Biosphere

Question 8

What is the term for a diagram that shows the feeding connections between organisms in an ecosystem?

Accepted Answer

Food web

Answer

Food chain

Answer

Habitat map

Answer

Population graph

Question 9

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

Accepted Answer

Human settlements

Answer

Living organisms

Answer

Non-living factors

Answer

Interactions

Question 10

Which of the following is the correct order of a food chain?

Accepted Answer

Producer -> Primary consumer -> Secondary consumer

Answer

Secondary consumer -> Primary consumer -> Producer

Answer

Primary consumer -> Secondary consumer -> Producer

Answer

Producer -> Secondary consumer -> Primary consumer

Question 11

Which of the following is a keystone species?

Accepted Answer

A species that has a small population size but a large impact on the ecosystem

Answer

A species that has a large population size

Answer

A species that is found in many different ecosystems

Answer

A species that is not affected by human activities

Question 12

The process by which plants make their own food using sunlight is:

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Decomposition

Answer

Symbiosis

Question 13

In a food chain, which organism is known as the producer?

Accepted Answer

Plant

Answer

Herbivore

Answer

Carnivore

Answer

Omnivore

Question 14

What is the name given to the specific area where an organism lives and gathers its resources?

Accepted Answer

Habitat

Answer

Population

Answer

Community

Answer

Ecosystem

Question 15

What is the term for the network of connected food chains within an ecosystem?

Accepted Answer

Food web

Answer

Trophic pyramid

Answer

Ecological niche

Answer

Energy pyramid

Question 16

What is the primary role of decomposers in an ecosystem?

Accepted Answer

To break down dead organisms

Answer

To produce food for herbivores

Answer

To establish new habitats

Answer

To manage populations

Question 17

Which of the following options best exemplifies a mutually beneficial relationship between two species?

Accepted Answer

Mutualism

Answer

Predation

Answer

Competition

Answer

Parasitism

Question 18

What is the primary source of energy for most ecosystems?

Accepted Answer

The sun

Answer

Plants

Answer

Animals

Answer

Fossil fuels

Question 19

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

Accepted Answer

Historical events

Answer

Living organisms

Answer

Non-living factors

Answer

Climate

Question 20

In a food chain, which organism is always the first consumer?

Accepted Answer

Herbivore

Answer

Producer

Answer

Carnivore

Answer

Omnivore

Question 21

In a grassland ecosystem, which of the following organisms is likely to be a producer?

Accepted Answer

Grass

Answer

Fox

Answer

Rabbit

Answer

Hawk

Question 22

In a food web, what does an arrow pointing from a producer to a herbivore represent?

Accepted Answer

Transfer of energy

Answer

Competition

Answer

Habitat overlap

Answer

Population growth

Question 23

The place where an organism lives is known as its:

Accepted Answer

Habitat

Answer

Ecosystem

Answer

Niche

Answer

Biome

Question 24

What is the term for the organisms that produce their own food through the process of photosynthesis?

Accepted Answer

Producers

Answer

Consumers

Answer

Decomposers

Answer

Scavengers

Question 25

What do we call the specific part of an ecosystem where an organism lives and finds its necessary resources?

Accepted Answer

Habitat

Answer

Niche

Answer

Ecosystem

Answer

Food web

Question 26

Which of these is NOT a physical adaptation that helps animals survive in their specific habitats?

Accepted Answer

Intelligence

Answer

Camouflage

Answer

Migration

Answer

Sharp claws

Question 27

What is the term for the interconnected network of food chains that make up an ecosystem?

Accepted Answer

Food web

Answer

Food pyramid

Answer

Energy cycle

Answer

Water cycle

Question 28

What is the primary function of decomposers within an ecosystem?

Accepted Answer

To break down dead organisms and organic matter

Answer

To produce oxygen

Answer

To consume primary consumers

Answer

To pollinate plants

Question 29

Which of the following is **not** a part of an ecosystem?

Accepted Answer

Imaginary creatures

Answer

Plants

Answer

Animals

Answer

Water

Question 30

An example of a habitat is a:

Accepted Answer

Forest

Answer

Food chain

Answer

Lion

Answer

Flower

Question 31

Living things that break down dead plants and animals are called:

Accepted Answer

Decomposers

Answer

Producers

Answer

Consumers

Answer

Predators

Question 32

In a food chain, which organism is always the first?

Accepted Answer

Producer

Answer

Primary consumer

Answer

Secondary consumer

Answer

Tertiary consumer

Question 33

What is a diagram that shows the feeding relationships in an ecosystem called?

Accepted Answer

Food web

Answer

Food chain

Answer

Habitat map

Answer

Population graph

Question 34

A change in an organism's traits that helps it survive in its environment is called:

Accepted Answer

Adaptation

Answer

Mutation

Answer

Evolution

Answer

Mimicry

Question 35

What is the term for the specific role and position of an organism within its habitat?

Accepted Answer

Niche

Answer

Habitat

Answer

Population

Answer

Lifespan

Question 36

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

Accepted Answer

Rocks

Answer

Plants

Answer

Animals

Answer

Bacteria

Question 37

What is the primary role of producers in a food chain?

Accepted Answer

To produce food using sunlight

Answer

To consume other organisms

Answer

To break down organic matter

Answer

To decompose dead organisms

Question 38

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

Accepted Answer

Food chains are linear, while food webs are branched.

Answer

Food webs are linear, while food chains are branched.

Answer

Food chains show all feeding relationships, while food webs only show some.

Answer

Food webs show all feeding relationships, while food chains only show some.

Question 39

What is the term 'habitat' used to describe?

Accepted Answer

The specific location where an organism lives

Answer

The role an organism plays in an ecosystem

Answer

The adaptations of an organism

Answer

The population of a species in an area

Question 40

What is the primary role of decomposers in an ecosystem?

Accepted Answer

To break down organic matter

Answer

To produce their own food

Answer

To consume plants and animals

Answer

To provide shelter for other organisms

Question 41

What is the primary source of energy for most ecosystems on Earth?

Accepted Answer

Light energy

Answer

Chemical energy

Answer

Electrical energy

Answer

Mechanical energy

Question 42

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

Accepted Answer

Plastic

Answer

Energy

Answer

Non-living factors

Answer

Living organisms

Question 43

In a food chain, which organism is responsible for producing its own food from inorganic matter?

Accepted Answer

Plant

Answer

Animal

Answer

Bacteria

Answer

Fungus

Question 44

Which of the following is an adaptation that allows a fish to breathe underwater?

Accepted Answer

Gills

Answer

Thick fur

Answer

Wings

Answer

Camouflage

Question 45

What does a food web illustrate?

Accepted Answer

The complex network of interconnected food chains within an ecosystem

Answer

The population dynamics of different species

Answer

The amount of energy present in each trophic level

Answer

The preferred habitats of various species

Question 46

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

Accepted Answer

Plants

Answer

pH

Answer

Temperature

Question 47

What is the term for the process through which nutrients are recycled within an ecosystem?

Accepted Answer

Biogeochemical cycling

Answer

Respiration

Answer

Decomposition

Answer

Photosynthesis

Question 48

Which human activity is a major contributor to ecosystem disruption?

Accepted Answer

Deforestation

Answer

Tides

Answer

Cloud formation

Answer

Volcanic eruptions

Question 49

What is the term for the physical surroundings in which an organism lives?

Accepted Answer

Habitat

Answer

The entire Earth's ecosystem

Answer

A specific type of organism

Answer

A community of organisms

Question 50

Which of the following is an example of a mutually beneficial relationship between two species?

Accepted Answer

A clownfish living among anemones

Answer

A parasitic worm living in a host's body

Answer

Two species competing for the same resources

Answer

A lion hunting a zebra

Question 51

What is the primary source of energy for most ecosystems on Earth?

Accepted Answer

The Sun

Answer

Water

Answer

Fossil fuels

Answer

Wind