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WorksheetsEcosystems
Total questions: 23
Worksheet time: 12mins
What breaks down the remains of dead organisms and adds nutrients to the soil?
Producers
Consumers
Decomposers
The Sun
Who can make their own food through a process known as photosynthesis after receiving energy from the sun?
Producers
Consumers
Decomposers
The sun
What organisms eat plants and animals to gain energy?
Producers
Consumers
Decomposers
The sun
Which of these is not a decomposer?
Mushroom
Fungi
Bacteria
Lion
Which of these is not a consumer?
Tiger
Squirrel
Fish
Apple Tree
Which of these is not a producer?
Tree
Flower
Grass
Bird
Which of these organisms is responsible for changing the sun's energy into food?
Tree
Human
Dog
Hippo
Which of these shows how energy flows among the animals?
A neighbor has built a house beside your house. Some of your plants are dying. Predict which of the following could be a reason?
The plants are extinct.
The house allows more animals to eat the plants.
The house has decreased the amount of sunlight the plants receive.
The house has decreased the amount of water the plants receive.
What is this?
Food Web
Food Chain
What is this?
Food Web
Food Chain
Which of these is a source of energy for a shark?
Algae
Fish
Squirrel
Bird
Infer how the birds population will be affected if the beaver population doubles.
They would have fewer resources for shelter.
They would have more nesting material.
They would become prey.
All the above.
In a predator-prey relationship, when the predator population increases, the prey population will probably ____________.
increase
decrease
stay the same
Humans are destroying many forests to build roads and homes. These changes in the forest...
start forest fires
change the weather
destroy habitats
improve their camouflage
Which of the following is an adaptation that helps animals survive in hot, dry climates?
Thick fur
hunting at night
a layer of fat
wings
Infer which population would increase if the number of mice increased?
Owls
Grass
Rabbits
Birds
What would happen if the rabbit population became extinct?
There would be less carrots
The foxes would have less to eat and would have to work harder to find food
The grasshopper population would double
If the grass in this area died, what would happen to animals in the food web?
All animals would be affected
The grasshoppers and rabbits would die
Some animals may have to find a new place to live due to the lack of food
all the above
Why do you not see some birds during the winter months?
They are hiding
They are hibernating
They are migrating
They die
What do carnivores eat?
other consumers
plants
both
What do herbivores eat?
other consumers
plants
both
What do omnivores eat?
other consumers
plants
both
