Water Cycle
Carbon Cycle
Nitrogen Cycle
Succession
Other
100
Any form of water that falls to the Earth's surface from the clouds.
What is precipitation?
100
The burning of a substance
What is combustion?
100
Makes up 78% of the earth's atmosphere
What is nitrogen gas?
100
A species that colonizes an uninhabited area and that starts a process of success
What is pioneer species?
100
A well-adapted species in a mature community
What is climax species?
200
The change of state from a gas to a liquid.
What is condensation?
200
The breakdown of substances into simpler molecular substances.
What is decomposition?
200
When bacteria in the soil are able to change nitrogen gas into forms that plants can use
What is nitrogen fixation?
200
The replacement of one type of community by another at a single place over a period time.
What is succession?
200
The variety of species that are present in an area
What is biodiversity?
300
The change of something from a liquid to a gas
What is evaporation?
300
Molecules that contain carbon
What are organic molecules?
300
When organisms die, these break down the remains
What are decomposers?
300
When a small community starts to grow in an area whre no other organisms have previously lived
What is primary succession?
300
Has organisms that are well adapted to live together in the same area over time
What is a mature community?
400
When precipitation that falls on land flows into streams, rivers, and lakes.
What is runoff?
400
When plants use carbon dioxide from air to make sugars (the basis of the carbon cycle)
What is photosynthesis?
400
Two other cycles that occur on Earth, other than the water, carbon, and nitrogen cycles
What are the calcium and phosphorus cycles?
400
Organism that usually starts primary succession.
What is a lichen?
400
What helps regulate body temperature through perpspiration and ...
evaporation.
500
Process when plants release a large amount of water vapor.
What is transpiration?
500
When sugar molecules are broken down to release energy
What is respiration?
500
Organisms need nitrogen to...
build proteins and DNA for new cells.
500
An existing community is destroyed and another takes its place
What is secondary succession?
500
All organic molecules contain this
What is carbon?
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