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WorksheetsSci Topic 9 TEST - Matter and Energy in Ecosystems
Total questions: 20
Worksheet time: 40mins
A tree makes it's own food using matter from the air and soil. A tree is a __________.
decomposer
producer
consumer
producer and consumer
The abiotic factors in the otter's ecosystem include?
air and water
air, water, sunlight
kelp and crabs
water and kelp
Which two statements about the model are true?
Mice and rabbits do not produce their own food.
Rabbits can consume more than one producer to get energy for survival.
Adding another consumer to the food web makes the web more sustainable.
Adding more producers to the food web decreases the amount of energy available to consumers.
Which two statements are supported by the diagram?
Polar bears are eaten only by seals.
Harbor seals are eaten by both orcas and harp seals.
Orcas eat seals, fish, and arctic birds.
Harbor seals only eat fish.
Mira plans to make a food chain based on her observations. Based on the data in Mira’s table, which chain shows the most likely feeding relationships?
phytoplankton – zooplankton – fish – dolphin – orca
dolphin – zooplankton – fish – orca
fish – orca – zooplankton – fish – dolphin
phytoplankton – dolphin – zooplankton – fish – orca
Which organisms are producers in this food web?
owls
mice
squirrels
plants
Living organisms are?
biotic
abiotic
Nonliving organisms are?
biotic
abiotic
Organisms that consume other organisms are ?
producers
consumers
decomposers
Which statement best describes the similarities of the carbon cycle and a food web?
Both show matter moving through an ecosystem.
Both represent what eats what in an ecosystem.
Both show a single pathway for matter moving through a community.
Both include abiotic factors in a community.
Both biotic and abiotic organisms living together represent which of the following?
ecosystem
community
population
individual
The mushrooms in this food chain represent?
producers
consumers
decomposers
This is a model of a forest ecosystem. Choose two answers below that might happen if water and sunlight were removed?
Producers would not be able to produce their own food.
Nothing, it would remain stable.
The ecosystem would be unbalanced
The deer population would increase.
The grasshopper, mouse, raccoon, and owl in this food chain represent?
producers
consumers
decomposers
The plants in this aquatic food web represent?
producers
consumers
decomposers
This image is an example of which cycle?
The carbon cycle
The water cycle
a food web
a food chain
What is the job of a decomposer?
To consume other animals and plants
To break down other animals and plants
To add to the population in the ecosystem
To make the ecosystem unbalanced
Joey wants to make a food chain model for his project. Choose the correct answer that puts the food chain in order from producers to consumers.
grass, rabbit, fox, grizzly bear
grizzly bear, fox, rabbit, grass
fox, rabbit, grizzly bear, grass
grass, grizzly bear, fox, rabbit
This is a model of a food web. What does it show?
It shows how matter and energy flows from one organism to another.
It shows how the sun shines on everything.
It shows how frogs eat grass
It shows matter but not energy.
Check 3 examples of natural events that might make an ecosystem unbalanced?
A volcanic eruption
A forest fire
A drought
A Snowstorm
