Studied by 1 person
Density Independent
Limiting factors that have nothing to do with population size.
Generalist
Organisms that feed on a wide variety of food and have a wider niche.
max number of individuals
Carrying capacity: The ________ an environment can support.
Emigration
The movement of individuals out of an area.
Immigration
The movement of individuals into an area.
Climax community
The state where populations of plants or animals remain stable and exist in balance with each other and their environment.
Density
________ dependent: Limiting factors that depend on population size.
Competitive Exclusion Principle
Two species with identical niches can not coexist for prolonged periods of time.
Homeostasis
The state of steady internal, physical, and chemical conditions- Equilibrium.
Specialist
Organisms that feed on specific things and have a narrower niche.
Producers
Organisms that capture energy from sunlight through photosynthesis and provide food from inorganic compounds.
Tertiary
Organisms that obtain energy by feeding on both primary and secondary consumers.
Commensalism
One individual benefits and the other is neither harmed nor helped.
Parasitism
One individual lives on /in another individual and causes harm.
population growth
Limiting Factors: Factors that cause ________ to decrease.
Independent Variables
Set by the investigator; represented on the x- axis.
Primary Consumers
Organisms that feed on producers.
Niche
A role an organism plays in a community.
Pioneer Organisms
An organism that populates a region after a natural disaster, mass extinction, or any other event that kills off most life in the area.
Mutualism
Both species benefit from the relationship.
Exponential population growth
The trend that occurs when population growth increases with population size.
Mutualism
Both species benefit from the relationship
Commensalism
One individual benefits and the other is neither harmed nor helped
Example of Commensalism
Frogs use plants as protection and the plants are not helped or harmed
Parasitism
One individual lives on/in another individual and causes harm
Example of Parasitism
Mosquitoes take blood from humans and humans get itchy and can catch disease
Competitive Exclusion Principle
Two species with identical niches cannot coexist for prolonged periods of time
Generalist
Organisms that feed on a wide variety of food and have a wider niche
Specialist
Organisms that feed on specific things and have a narrower niche
Niche
A role an organism plays in a community
Limiting Factors
Factors that cause population growth to decrease
Density-dependent
Limiting factors that depend on population size
Example
Overcrowding, disease, etc
Density Independent
Limiting factors that have nothing to do with population size
Example
Unusual weather, natural disasters, seasonal cycles, human impacts, etc
Carrying capacity
The max number of individuals an environment can support
Exponential population growth
The trend that occurs when population growth increases with population size
Immigration
The movement of individuals into an area
Emigration
The movement of individuals out of an area
Primary Succession
no soil, bare rock
Secondary Succession
Soil is present
Climax community
The state where populations of plants or animals remain stable and exist in balance with each other and their environment
Pioneer Organisms
An organism that populates a region after a natural disaster, mass extinction, or any other event that kills off most life in the area
Producers
Organisms that capture energy from sunlight through photosynthesis and provide food from inorganic compounds
Primary Consumers
Organisms that feed on producers
Secondary
Organisms that feed on primary consumers
Tertiary
Organisms that obtain energy by feeding on both primary and secondary consumers
What is Scientific Method
An observation/Inference
Steps
Observation, Ask a Question, Research or use prior knowledge, hypothesis, experiment, analyze data, conclusion, report
Controlled Experiment
an experiment where all variables in an experimental group and a comparison control group are kept the same except for one variable that is changed
Dependent Variables
Measured during the investigation; represented on the y-axis
Independent Variables
Set by the investigator; represented on the x-axis
PURPOSE
To collect Data
Qualitative Data
Data collected that is NOT numbers (color/shape patterns, words, etc.)
Quantitative Data
Data represented by numbers and statistics
Biotic Factors
Living factors in an environment
Abiotic Factors
Non-living factors in an environment
Asexual
One organism makes an exact genetic copy of itself
Sexual
Two organisms merge genetics for a genetically mixed product
Note 
Flashcard (97)