Cycles 1
Cycle 2
Cycle 3
Evolution 1
Evolution 2
100
The movement of water through the atmosphere to earth and back again is...
What is the water cycle.
100
The movement of nitrogen from environment to living things and back again.
What is the nitrogen cycle.
100
The movement of carbon from environment to living things and back to the environment.
What is the carbon cycle.
100
A gradual development of a community over time is called.
What is succession.
100
When individuals who have certain variations will be able to survive if environment changes.
What is Survival of the Fittest.
200
Hail, sleet, and snow are all forms of this...
What is precipitation.
200
The process that causes the strong 2-atom nitrogen molecules found in the atmosphere to break apart so they can combine with other atoms.
What is nitrogen fixation.
200
When plants use the sun's energy to make food.
What is photosynthesis.
200
Characteristics that help an organism survive and reproduce in its environment.
What is adaptation.
200
When individuals that survived to reproduce may develop into a new species.
What is speciation.
300
When heat from the sun causes water to change its state from water to vapor.
What is evaporation.
300
When bacteria decomposers bread down amino acids from dead animals and wastes into nitrogen ammonium.
What is ammonification.
300
When sugar molecules are broken down to release energy - carbon dioxide and water are the results.
What is respiration.
300
The first organisms that grow in an area is called...
What are pioneer species.
300
The process by which two populations of the same species become so different that they can no longer interbreed.
What is generation time.
400
When water vapor cools and falls to earth as precipitation.
What is condensation.
400
The process where bacteria converts toxic ammonia to less harmful nitrate.
What is nitrification.
400
The breakdown of dead materials into carbon dioxide (CO2).
What is decomposition.
400
The process by which populations accumulate inherited changes over time.
What is evolution.
400
A historical sequence of life indicated by fossils found in layers of the Earth's crust.
What is fossil record.
500
When water is released from skin or a leaf, this is known as...
What is transpiration.
500
The process that converts nitrates in the soil to atmospheric nitrogen replenishing the atmosphere.
What is denitrification.
500
The process of burning fuel. Carbon in coal, oil, and natural gas return to the atmosphere as carbon dioxide.
What is combustion.
500
When individuals who have favorable variations are able to survive and reproduce successfully.
What is natural selection.
500
Water stored in underground caverns or porous rock.
What is Ground Water.
M
e
n
u