The biosphere
Levels of organization
Ecosystem and Community intereactions
Energy in an ecosystem
Cycles in the biosphere
100
The living factors in an organism´s environment.
What are the biotic factors?
100
It is a large group of ecosystems that share the same climate and have similar types of communities.
What is a biome?
100
This is the role or position that an organism has in its environment.
What is a niche?
100
Organisms that eat both plants and animals.
What are omnivores?
100
It is the exchange of matter through the biosphere.
What is the biogeochemical cycle?
200
This is the portion of Earth that supports life (goes from high in the atmosphere to deep in the oceans)
What is the biosphere?
200
Individual organisms of a single species that share the same geographic location at the same time.
What is a population?
200
It is the act of one organism consuming another organism for food.
What is predation?
200
It is the model that shows how energy flows through an ecosystem.
What is food chain?
200
Alternative name for the water cycle.
What is hydrologic cycle?
300
Scientists that study the organisms in the world and the environments in which they live.
What are ecologists?
300
It is a biological community and all of the abiotic factors that affect it.
What is an ecosystem?
300
Type of relationship between two organisms that live closely together and benefit from each other.
What is mutualism?
300
Name of the organism that collects energy from sunlight or inorganic substances to produce food.
What is an autotroph?
300
This cycle has to do with coal, oil or gas deposits.
What is the carbon cycle?
400
The nonliving factors in an organism´s environment.
What are the abiotic factors?
400
Group of interacting populations that occupy the same geographic area at the same time.
What is a biological community?
400
Symbiotic relationship in which one organism benefits at the expense of another organism.
What is parasitism?
400
It is the model representing the many interconnected food chains and pathways in which energy flows through a group of organisms.
What is a food web?
400
This compound is recycled when autotrophs and heterotrophs release it back into the air during cellular respiration.
What is carbon dioxide CO2
500
Temperature, sunlight, soil type, rainfall, available nutrients.
What are some examples of abiotic factors?
500
It is the lowest level of organization that most ecologists study.
What is an organism?
500
This is the name given in ecology to an area where an organism lives.
What is habitat?
500
Each step in a food chain or food web.
What is a trophic level?
500
The process of capture and conversion of nitrogen into a form that is useable by plants.
What is nitrogen fixation?
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