20 Questions
What is the classification of ecosystems based on their origin?
Natural and artificial ecosystems
Which components of an ecosystem involve the continuous interaction resulting in a characteristic physical structure?
Abiotic or nonliving components
What does the structure of an ecosystem involve?
Composition of a biological community
What is the vertical distribution of different species occupying different levels in an ecosystem known as?
Stratification
What is the continuous input of energy from an ultimate source mainly the Sun tapped by in an ecosystem?
Producers
How are natural ecosystems further classified?
Terrestrial and aquatic ecosystems
What is the function of decomposers in an ecosystem?
Breaking down complex organic matter into simple inorganic substances
What does detritus usually comprise of?
Dead and decaying plant and animal remains
What are the factors that affect the rate of decomposition?
Oxygen, chemical composition of detritus, temperature, and soil moisture
What is the primary productivity in an ecosystem defined as?
The amount of biomass produced per unit area and time by primary producers during photosynthesis
What is gross primary productivity in an ecosystem?
The total energy fixed by primary producers through photosynthesis
What is net primary productivity in an ecosystem?
The biomass available for consumption by heterotrophs after subtracting respiration losses
What is secondary productivity in an ecosystem?
The rate of formation of biomass by consumers
What are autotrophs?
Organisms that produce their own food by converting inorganic material into organic compounds using the sun's energy
What are the two primary parts of an ecosystem?
Biotic and abiotic
Where does the energy in ecosystems come from?
Sunlight
What is a niche in an ecosystem?
An organism's special role in the ecosystem
What are some threats to ecosystems mentioned in the text?
Deforestation and urbanization
What is the habitat in an ecosystem?
The place where an organism lives
How does energy move through an ecosystem?
By a food web
Test your knowledge about ecosystems, their classifications, and components with this quiz. Learn about natural and artificial ecosystems, as well as the abiotic and biotic components that make up these functional units.
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