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
What is mutualism
100
This provides the energy for most ecosystems on Earth
What is the Sun
100
These limiting factors are dependent on the size of the population in an area.
What are density dependent factors
100
These organisms occupy the bottom level of the trophic structure and provide the energy/matter for all of the other levels
What are 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. 
What is commensalism
200
This level of the trophic structure relies on energy from the primary consumer level and the producer level.
What is the secondary consumer level.
200
An organism that is not indigenous, or native, to a particular area. Can cause great harm to the area due to a lack of natural predators and an abundance of food. (ex. Atlantic Salmon in the Pacific Ocean)
What is an invasive species
200
This level of the trophic structure feeds on producers
What are primary consumers
200
These animal behaviors are "fixed" or automatic
What are innate behaviors
300
This image is representative of which type of population growth? 
What is logistic growth
300
This interaction would be represented by a +/- where the population benefitting uses the host to survive.
What is parasitism
300
If there is 20,000,000kg of biomass at the producer level, how much would be available for secondary consumers?
What is 200,000kg
300
This occurs when a change in one level of the trophic structure affects all other levels
What is trophic cascade
300
Organisms in this level of the trophic structure feed on secondary consumers.
What are tertiary consumers
300
These behaviors can be modified by experience and are flexible with the changing environment
What are learned behaviors
400
Carrying capacity is determined by these factors
What are limiting factors
400
-/-
What is competition
400
These organisms chemically break down dead and decaying material so that producers can use these nutrients.
What are decomposers.
400
A group of species interacting with other species in a given area. 
What is a 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
What is the 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
The following graph represents this growth pattern often seen in nature in a predator prey relationship. 
What is a boom and bust pattern
500
If two niches overlap this interaction is likely to occur....
What is competition
500
The quaternary consumers in an ecosystem have 5,000kg of biomass available to them. This means that the producers must have created this amount of biomass.
What is 50,000,000kg
500
Although small in number these species have a profound affect on the ecosystem they are found in
What is a keystone species
500
These organisms mechanically break down dead and decaying material and are vital for keeping energy flowing through the trophic structure.
What are detritivores
500
Movement of plant species towards the light
What is phototaxis