Factors affecting populations
Community interactions
Energy flow in an ecosystem
Vocabulary
Trophic Structure
Animal Behavior
100
Living factors that affect populations
What are biotic factors
100
+/+ relationship
mutualism
100
A sequence showing who eats whom in an ecosystem.
Food Chain
100
The usual weather conditions in a place over a long time.
Climate
100
These organisms occupy the bottom level of the trophic structure and provide the energy/matter for all of the other levels
producers or autotrophs
100
This is defined as anything an animal does and how it does it
What is Behavior
200
Non-living factors that affect populations
What are abiotic factors
200
+/0 relationship where one benefits and the other is neither hurt nor helped. 
commensalism
200
This level of the trophic structure relies on energy from the primary consumer level and the producer level.
Secondary consumer level.
200
A species that is not native to an area and causes harm to an Ecosystem
Invasive species
200
This level of the trophic structure feeds on producers
primary consumers
200
These animal behaviors are "fixed" or automatic
What are innate behaviors
300
What can change a habitat?
climate
300
This interaction would be represented by a +/- where the population benefitting uses the host to survive.
parasitism
300
A network of interconnected food chains showing all feeding relationships in an ecosystem.
Food Web
300
A community of living things (plants, animals, and microorganisms) interacting with each other and with non-living things (like water, soil, and air) in a particular area.
Ecosystem
300
Organisms in this level of the trophic structure feed on secondary consumers.
tertiary consumers
300
These behaviors can be modified by experience and are flexible with the changing environment
What are learned behaviors
400
What spreads seeds and helps plants grow?
Animals and Birds
400
-/-
competition
400
These organisms chemically break down dead and decaying material so that producers can use these nutrients.
Decomposers
400
All the different species living and interacting in the same area. 
Community
400
This level of the trophic structure will have the fewest organisms due to the amount of energy and matter that is still available to them
quaternary consumer level
400
This type of conditioning would include a period of trial and error in which the animal might associate a behavior with punishment or reward.
What is operant conditioning
500
How can invasive species reach new ecosystems and harm native species?
humans
500
If two niches overlap this interaction is likely to occur....
competition
500
If there is 20,000,000kg of biomass at the producer level, how much would be available for secondary consumers?
What is 200,000kg
500
Even though there are few of them, these species have a big impact on their ecosystem.
Keystone species
500
These organisms mechanically break down dead and decaying material and are vital for keeping energy flowing through the trophic structure.
detritivores
500
Movement of plant species towards the light
What is phototaxis