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WorksheetsEcosystems
Total questions: 16
Worksheet time: 8mins
What do we call a single living thing?
Community
Ecosystem
Population
Organism
The maximum number of organisms that an environment can support is called the:
Biotic factor
Abiotic factor
Carrying capacity
Independent variable
An abiotic factor is a factor that is...
A living factor of an environment (e.g. bacteria).
Dependent on biotic factors.
A non-living factor of an environment (e.g. sunlight).
are animals.
In an experiment, the factor that is changed by the scientist is called:
Dependent variable
Independent variable
Controlled variable
Responding variable
Which term describes all the different populations living and interacting in a particular area?
Ecosystem
Organism
Community
Population
An organism that can make its own food using sunlight or chemical energy is called a:
Consumer
Decomposer
Producer
Herbivore
What do we call organisms that break down dead plants and animals?
Producers
Consumers
Predators
Decomposers
The factor being measured or observed in an experiment is known as the:
Independent variable
Controlled variable
Dependent variable
Constant variable
Which of the following is an example of a biotic factor?
Temperature
Soil pH
Bacteria
Humidity
Organisms that cannot make their own food and must eat other organisms are called:
Producers
Decomposers
Consumers
Autotrophs
A group of individuals of the same species living in the same area is called a:
Community
Population
Ecosystem
Biome
Which of the following is NOT an abiotic factor?
Sunlight
Water
Algae
Air
In a food chain, energy typically flows from:
Decomposers to producers
Consumers to producers
Producers to consumers
Abiotic factors to biotic factors
Which the following are factors that can affect the size of ANY population?
Predators
Amount of food/water (resources)
Habitat space
Competition between species
If a population increases too much, what happens?
The population will continue to increase because there's still so much food.
The population's predators will die out.
Competition for resources will get tighter because there isn't enough food/space. So the population will start to decrease.
A new species will develop.
A limiting factor is a factor that can limit a population growing. An example of a limiting factor is...
Food, water, space
Carrying Capacity
Control Variable
Pollution
