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WorksheetsBiology Chapter 3
Total questions: 15
Worksheet time: 8mins
All life on Earth exists in
An Ecosystem
A Biome
The Biosphere
Ecology
Which term describes a group of different species that live together in a defined area?
A Population
A Community
An Ecosystem
A Biosphere
Primary producers are organisms that
Rely on other organisms for their energy and food supply.
Consume plant and animal remains and other dead matter.
Use energy they take in from the environment to convert inorganic molecules into complex organic molecules.
Obtain energy by eating only plants.
Which of the following is a decomposer?
A
B
C
D
Which of the following describes how ALL consumers get their energy?
Directly from the sun.
From eating primary producers
From inorganic chemicals like hydrogen sulfide
From eating organisms that are living or once living.
The series in which the large fish eats a small fish that has eaten algae is
Food Web
Food Chain
Pyramid of Numbers
Pyramid of Biomass
The total amount of living tissue at each trophic level in an ecosystem can be shown in a(n)
Energy Pyramid
Pyramid of Numbers
Biomass Pyramid
Biogeochemical Cycle
Nutrients move through an ecosystem in
Biogeochemical Cycles
Water Cycles
Energy Pyramids
Ecological Pyramids
Which biogeochemical cycle does NOT include a major path in which the substance cycles through the atmosphere?
Water Cycle
Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
A group of individuals that belong to a single species and that live together in a defined area?
Population
Ecosystem
Community
Biome
Which of the following is NOT true about matter in the biosphere?
Matter is recycled in the biosphere.
Biogeochemical cycles transform and reuse molecules.
The total amount of matter decreases over time.
Water and nutrients pass between organisms and the environment.
Which is a source of energy for earths living things?
Wind Energy Only
Sunlight Only
Wind Energy and Sunlight
Sunlight and Chemical Energy
Which of the following is a primary producer?
Algae
A Lion
A Human
An Earthworm
Human activities, such as the burning of fossil fuels, move carbon through the carbon cycle. Which other processes also participate in the carbon cycle?
Biological Processes Only
Geochemical Processes Only
Chemical Processes Only
A Combination of Biological, Geological, and Chemical Processes
What are the physical, or non-living components of an ecosystem called?
Abiotic Factors
Temperate Conditions
Biotic Factors
Antibiotic Factors
