Levels of Organization
A single, individual living thing, such as a white-tailed deer.
an organism
An example of a "biotic" factor in an environment.
plants, animals, or microorganisms
The maximum population size an environment can support.
carrying capacity
A diagram showing how energy flows from a producer to a consumer.
a food chain
A group of individuals of the same species living in the same geographic area at the same time.
a population
Rock, water, and sunlight are examples of this type of factor
an abiotic factor
A group of organisms so closely related they can interbreed and produce fertile offspring.
a species
An organism that produces its own food, typically through photosynthesis.
a producer/autotroph
All the different populations of different species that live and interact together in a specific area.
a community
A dead tree or a fallen leaf would be classified as this.
biotic
If 25 organisms move into a population and 25 move out, this happens to the population size.
it remains constant
A type of interaction where one organism benefits while the other is harmed.
parasitism
A community of organisms interacting with their non-living (abiotic) physical environment.
an ecosystem
This determines the specific type of organisms that can survive in a biome, including latitude and land features
climate
This term describes the number of individuals of a single species per unit area.
population density
A type of interaction where both species involved benefit.
mutualism
The global sum of all ecosystems on Earth, representing the highest level of organization.
the biosphere
This "negative" process happens when a population is not supported by its abiotic factors.
death or emigration
The primary cause of population change due to a lack of resources.
competition or death
The role a species plays within its community, including its habitat and diet.
a niche