An organism that captures energy from sunlight or inorganic substances to obtain food.
What is an autotroph?
100
Each step in he food web or food chain is called this.
What is a tropic level?
100
Scientist who study ecology are called this.
What is an ecologist?
100
A chemical substances that an organism needs to preform lie processes.
What is a nutrient?
100
The process of capturing and changing nitrogen into the form that plants can use.
What is nitrogen fixation?
200
Also called a consumer, but is an organism that obtains enery by consuming others.
What is a heterotroph?
200
A simple model that shows how energy flows through an ecosystem.
What is a food chain?
200
The study of interactions of organisms in their environment.
What is ecology?
200
The total mass of living matter at each trophic level.
What is biomass?
200
Living factors in an organism's environment.
What is biotic factors?
300
An organism that only eats plants.
What is a herbivore?
300
decomposes organic materials in an ecosystem and return the materials to the soil.
What is a detritivore?
300
This happens when some bacteria in the soil change nitrogen compounds into nitrogen gas.
What is denitrification?
300
A model that shows all the possible feeding relationships in an ecosystem.
What is a food web?
300
Nonliving thing in an organism's environment.
What is abiotic factors?
400
An organism that preys on others is...
What is a carnivore?
400
Individual organisms of the same species living in the same geographic location at the same time make up this.
What is population?
400
This is the combination of processes that exchange matter through the biosphere.
What is the biogeochemical cycle?
400
An area where an organism lives.
What is a habitat?
400
The portion of the earth that supports life.
What is the biosphere?
500
Organism that eats both plants and animals
What is an omnivore?
500
Levels of Organization in Ecology.
What is organism, population, community, ecosystem, biome,and biosphere
500
Any thing that takes up space and is a mass.
What is matter?
500
The role an organism has in its enviorment.
What is a niche?
500
A cycled where the chemical is cycled in two way long-term and short-term. Short-term is when the chemical is cycled in from the soil to producers to consumers. Long-term is when the chemical is added to soil from weathering or erosion of rocks that contain the chemical.