WorksheetsEcosystem Energy and Food Chain Quiz
Total questions: 9
Worksheet time: 5mins
What is the original source of almost all energy in an ecosystem?
Consumers
Producers
The Sun
Decomposers
Which of the following is an example of a non-living factor in an ecosystem?
A snake
Water
A tree
A mushroom
Which organisms are considered the "end of the food chain" because they recycle nutrients by breaking down dead matter?
Producers
Consumers
Organisms
Decomposers
The path of food energy in an ecosystem, from the Sun to the producers and then to consumers, is called the:
Abundance
Organism path
Flow of Energy
Scarcity
What would happen if the initial food source in an ecosystem disappeared?
Consumers would eat the decomposers instead.
Energy would start flowing from consumers to the Sun.
Nothing else would exist without the initial food source.
Decomposers would become overabundant.
If the population of a certain consumer became overabundant in an ecosystem, what might happen?
The producers would become overabundant too.
The food source for that consumer would become scarce.
The flow of energy would stop completely.
The decomposers would disappear.
Which organism is a first-level consumer in the food web diagram?
Bald Eagle
Mayfly
Snake
Human
If the trout population suddenly became scarce, which two organisms would be most affected?
Bald Eagle and Snake
Mayfly and Dragonfly
Frog and Salamander
Human and Phytoplankton
What is one possible result if new consumers entered the ecosystem?
The ecosystem would remain balanced.
Organisms in the food chain may become overabundant or move to a new habitat.
Producers would disappear completely.
Energy would flow backward in the food chain.
