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WorksheetsYear 7 Science - Exploring Food Chains and Webs (1)
Total questions: 32
Worksheet time: 16mins
which one is a Producer?
Which of these completes the food chain correctly?
a rock
a fox
a plant
an egg
Which organism in this food web is an herbivore?
Frog
Grasshopper
Mouse
Snake
The shrew provides energy for the _______?
cricket
grasshopper
frog
snake
Look at the food web of a pond ecosystem.
Which food chain shows the correct flow of energy in the pond
of the food web?
Look at the food web shown above. Which organisms are producers?
Deer and mice
Grass and shrubs
Snakes and hawks
Grasshoppers and frogs
Food of almost any kind can be traced back to what?
the sun
animals
plants
soil
The flow of energy in some Australian food chains is modeled in the energy pyramid.
Based on the model, which consumers would receieve the greatest amount of energy captured by the producers in their food chains?
Wedge-tailed eagles
Chuditch
Ring-tailed oppossums
Eucalyptus trees
Which type of consumer eats plants only?
carnivore
omnivore
herbivore
insectivore
If there was an increase in the Owl population, which animal would decrease?
Grass
Mouse
Grasshopper
Owls
Food chain
Food web
What is a decomposer?
What are the organisms that break down dead stuff?
Producers
Consumers
Decomposers
Organisms
What is the primary role of producers in a food chain?
To decompose organic matter
To produce energy from sunlight
To consume other organisms
To recycle nutrients
Which of the following is an example of a producer?
Lion
Grass
Mushroom
Eagle
What is the main role of consumers in a food chain?
To produce energy from sunlight
To decompose organic matter
To consume other organisms for energy
To recycle nutrients
Which of the following is a primary consumer?
Rabbit
Hawk
Oak tree
Earthworm
What role do decomposers play in an ecosystem?
They produce energy from sunlight
They consume other organisms
They break down dead material and recycle nutrients
They compete with producers for sunlight
Which of the following organisms is a decomposer?
Grasshopper
Fungi
Sparrow
Kangaroo
In a food web, energy flows from:
Consumers to producers
Decomposers to producers
Producers to consumers
Consumers to decomposers
What is a food chain?
A complex network of interconnected food webs
A linear sequence of organisms where each is eaten by the next
A group of organisms that produce their own food
A cycle of nutrient recycling
How does a food web differ from a food chain?
A food web is a single linear path
A food web includes only producers
A food web is a complex network of interconnected food chains
A food web excludes decomposers
Which of the following best describes a producer?
An organism that consumes other organisms
An organism that decomposes organic matter
An organism that makes its own food using sunlight
An organism that competes for resources
Which of the following is a secondary consumer?
Grass
Deer
Wolf
Algae
What is the primary source of energy for most food chains?
The Moon
The Sun
The Earth’s core
Ocean currents
Which of the following statements about energy flow in food webs is true?
Energy is recycled back to the Sun
Energy decreases as it moves up the food web
Energy increases as it moves up the food web
Energy remains constant throughout the food web
What is the role of a tertiary consumer in a food chain?
To produce energy from sunlight
To consume primary consumers
To consume secondary consumers
To decompose organic matter
Which of the following is an example of a food web?
Grass → Rabbit → Fox
Grass → Cow → Human
Grass, Rabbit, Fox, Hawk, Snake
Grass → Rabbit → Snake → Hawk
What happens to the energy that is not transferred to the next trophic level in a food chain?
It is destroyed
It is recycled back to producers
It is lost as heat
It is stored in the soil
Which of the following is a characteristic of a consumer?
Produces its own food
Consumes other organisms for energy
Decomposes organic matter
Recycles nutrients
In a food chain, which organism is most likely to be at the top?
Producer
Primary consumer
Secondary consumer
Tertiary consumer
Which of the following best describes the relationship between food chains and food webs?
Food chains are more complex than food webs
Food webs are made up of multiple interconnected food chains
Food chains and food webs are the same
Food webs exclude decomposers
