The biosphere
Community interactions
Energy in an ecosystem
Energy flow
Cycles in the biosphere
100
What is the area of land that supports life.
What is biosphere?
100
Obtaining food by eating another organism.
What is predation?
100
____ captures energy from inorganic substances or sunlight to make food.
What is autotroph?
100
A diagram that shows all the possible feeding relationships in an ecosystem.
What is a food web?
100
Anything that takes up space and has mass.
What is matter?
200
These factors interact indirectly and/or directly with the environment.
What is biotic factors?
200
When organisms need to use the same resource at the same time.
What is competition?
200
When you consume only plants.
What is a herbivore?
200
____ model how energy flows through ecosystems.
What is ecological pyramid?
200
6CO2+6H2O+light=C6H12O6+6O2
What is photosynthesis?
300
The non-living factors in the environment.
What is abiotic factors?
300
____are shaped by the interactions of biological communities and abiotic factors.
What are ecosystems.
300
A consumer that obtains energy by consuming other organisms.
What is a heterotroph?
300
What each step in a food chain/web.
What is trophic level
300
A chemical substance that an organism needs to perform life processes.
What is nutrient?
400
The group of populations that interact in the same geographic area.
What is biological community?
400
When species survive because of relationships with other species.
What is symbiosis?
400
When you eat plants and animals.
What is an omnivore?
400
A simple model that shows how energy flows through an ecosystem.
What is food chain?
400
Some of the bacteria in the soil change nitrogen compounds into nitrogen gas is _______.
What is denitrification?
500
A____is how the species meets its specific needs for food and shelter.
What is niche?
500
A relationship where one species is helped and the other is not harmed or is healed.
What is commensalism?
500
_______decompose organic materials in an ecosystem and return the nutrients to the soil,air,and water.
What is a detritivore?
500
The total mass of living matter at each trophic level.
What is biomass?
500
The process of capturing and changing nitrogen into a form that plants can use is______.
What is nitrogen fixiation?
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