Experimental Design
the variable in an experiment that is being measured
What is a dependent variable?
The conditions outside right now or in the very near future
What is weather?
energy and matter can move in and out of this system
What is an open system?
This type of speciation occurs when two groups are separated in space.
What is geographic speciation?
both organisms benefit
What is mutualism?
the variable in an experiment that the scientist changes. The thing being tested.
What is the independent variable?
The average weather over a long period of time.
What is climate?
Energy, but no matter, can move in and out of this system.
What is a closed system?
the genetic variation of a population is reduced due to a random event.
one organism benefits and the other is unaffected
What is commensalism?
The group in the independent variable that everything is compared to. It does not change. The standard of comparison.
What is the control group?
Because of this, places near the coast tend to be warmer with a more stable climate than places farther from the coast or large body of water.
What is water has high specific heat?
neither energy nor matter can move in or out of this system
What is an isolated system?
the movement of genes of one population to another population.
What is gene flow?
What is parasitism?
Things that remain the same in all independent variable groups.
constants
Factors: trees, predator, prey, mutualism, decomposers, algae, bunny
What is biotic factors?
The second law of thermodynamics states that energy will move towards chaos or this. This is why heat is given off when one form of energy is changed to another form of energy.
what is entropy?
the ultimate source of variation in a population.
What is mutation?
The limit an ecosystem can support
What is carrying capacity?
an educated guess that references the relationship between the independent and the dependent variable.
What is the hypothesis?
factors: temperature, precipitation, soil, nutrients, carbon, oxygen, water
What is abiotic factors?
The movement of carbon in and out of water.
What is diffusion?
mechanism of evolution that occurs when there is genetic variation, overproduction of offspring, and struggle to survive.
What is natural selection?
The things that set a carrying capacity.
What is a limiting factor?