APES Final Study Guide Flashcards
What is LD50?
Lethal Dose of 50% of the population
What makes Acid Rain?
SOx
What makes Industrial Smog?
SOx
What is an Independent Variable?
The change made in an experiment
(Manipulated variable)
What is a Dependant Variable?
The effect of the change in an experiment
(Observed change)
What is a Constant?
An unchanged variable in every trial of an experiment.
Time, Temp., Equipment, Light, Quantity
What is a Control?
An experimental group that is not being tested with an external factor.
What is the Biosphere?
The Area of Earth where life exists.
What is the Geosphere?
All rocks, minerals, and ground found on and in Earth.
What is the Hydrosphere?
All water on Earth’s surface, sometimes over surface.
What is the Atmosphere?
The gases surrounding the earth
Exosphere, Thermosphere, Mesosphere, Stratosphere, Troposphere
What do arrows on a Food Web indicate?
Not who eats who, but how energy flows through an ecosystem
What is Predation?
When one organism kills another for food
What is Competition?
When species compete for similar resources, like food and shelter
What is the Tundra?
Cold, damp, and without many trees.
