BIOL 221. Ecology and Evolution
BIOL 221 ECOLOGY AND EVOLUTION FINAL
EXAM 2026 LATEST WEST VIRGINIA
UNIVERSITY GRADED A (SOLVED)
What is an Ecosystem?
the biotic and abiotic components of the environment
What is a model?
an abstract,simplified way of representing a real system that was developed from
observations, experiments and results
The sun's peak radiation intensity is in which part of the EM spectrum?
Peak is in the visible spectrum
What happens to solar (shortwave) radiation when it reaches the Earth?
-Some reflected
back into space
-Some absorbed
and re-emitted
as long-wave
radiation
What is albedo?
the reflectivity of the earths surface
Which places have a high albedo? Why?
, BIOL 221. Ecology and Evolution
the red area because in the north theres snow and it reflects light and in Africa the
sand reflects the light back
Which places have a low albedo? Why?
the green areas because theres vegetation that absorbs a lot of the light
What is the energy content of Terrestrial Longwave Radiation?
Lower IR energy
What is atmospheric longwave radiation?
the terrestrial longwave radiation that is absorbed by gases in the atmosphere and
emitted downward
What is the Net Radiation equation?
Net radiation= Sun Radiation short wave-reflected sun radiation short wave -
(terrestrial longwave - atmospheric longwave)
How would the radiation change if the sun became hotter...
incoming shortwave radiation would increase
How would the radiation change if the earth moved further from the sun...
Incoming short wave radiation would decrease
How would radiation change is greenhouse gasses increased....
BIOL 221 ECOLOGY AND EVOLUTION FINAL
EXAM 2026 LATEST WEST VIRGINIA
UNIVERSITY GRADED A (SOLVED)
What is an Ecosystem?
the biotic and abiotic components of the environment
What is a model?
an abstract,simplified way of representing a real system that was developed from
observations, experiments and results
The sun's peak radiation intensity is in which part of the EM spectrum?
Peak is in the visible spectrum
What happens to solar (shortwave) radiation when it reaches the Earth?
-Some reflected
back into space
-Some absorbed
and re-emitted
as long-wave
radiation
What is albedo?
the reflectivity of the earths surface
Which places have a high albedo? Why?
, BIOL 221. Ecology and Evolution
the red area because in the north theres snow and it reflects light and in Africa the
sand reflects the light back
Which places have a low albedo? Why?
the green areas because theres vegetation that absorbs a lot of the light
What is the energy content of Terrestrial Longwave Radiation?
Lower IR energy
What is atmospheric longwave radiation?
the terrestrial longwave radiation that is absorbed by gases in the atmosphere and
emitted downward
What is the Net Radiation equation?
Net radiation= Sun Radiation short wave-reflected sun radiation short wave -
(terrestrial longwave - atmospheric longwave)
How would the radiation change if the sun became hotter...
incoming shortwave radiation would increase
How would the radiation change if the earth moved further from the sun...
Incoming short wave radiation would decrease
How would radiation change is greenhouse gasses increased....
