Food webs | Science | Quizalize & Oak National Academy

Starter quiz

What do the arrows in a food chain diagram represent?

The arrows mean ‘eats’.

The arrows mean ‘is food for’. ✓

The arrows show the direction that food moves along the food chain. ✓
A ______ is the number of organisms, of the same type, that live in a given area.

'Population' ✓
What is a primary consumer?

An organism that makes its own food from sunlight and chemicals.

An organism that eats secondary consumers.

An organism that eats producers. ✓
How many prey are there in the food chain diagram below?

One

Two

Three ✓

Four

Five
Match the organism in the food chain to the correct description.

Grass

⇔

Producer ✓

Scrub hare

⇔

Primary consumer ✓

Baboon

⇔

Secondary consumer ✓

Cheetah

⇔

Tertiary consumer ✓
Match the statements with the organism that appears in this food chain.

Algae

⇔

make their own food. ✓

Water beetle

⇔

is the prey of frogs. ✓

Frog

⇔

is a predator of water beetles. ✓

Kingfisher

⇔

is an apex predator. ✓

A ______ is made up of all the living organisms that live in the same place.

'community' ✓
Which of the following is an example of a population?

All the trees in a forest.

All the plants and animals in a forest.

All the oak trees in a forest. ✓

All the animals in a forest.
The fish in the picture is streamlined in shape and has a mouth that can act as a sucker. What habitat do you think this fish lives in?

A deep pond.

A slow moving river.

A fast flowing stream. ✓

The sea.
Below are three food chains. Which food web correctly shows all three food chains?
How many food chains make up the food web diagram?

Four

Five

Six

Seven

Eight ✓
What might happen if all the rabbits died?

The population of hawks would increase because there are fewer rabbits to eat.

The population of grass would decrease because more grasshoppers would eat it.

The population of lizards would decrease because the hawks eat more of them. ✓

The population of snakes would increase because there are no rabbits.

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A community of organisms is made up of interacting populations of species.
A food web diagram represents several interconnected food chains within a community of organisms.
A change in the size of a population will affect other populations in the food web.

Changes in population within a food web will only impact organisms within the same food chain.

Exemplify that disappearance of one population could affect populations in all parts of the food web (CfU questions address this also).

Habitat - A habitat is the place where an organism lives. It must provide food, shelter and a place to reproduce.
Population - A group of organisms of the same type in the same place is called a population.
Community - A community is made up of all the organisms that live in the same place.
Food chain - A food chain diagram shows how food is transferred from one population of organisms to another.
Food web - A food web diagram shows how all food chains interact with each other.