All dat life
Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
Biosphere
the variety of life, or number of species, present within an ecosystem
Biodiversity
The impact of a person or community on the environment is expressed as the amount of land required to sustain their use of natural resources.
ecological footprint
An organism that makes its own food
Producer
Each step in a food chain or food web
trophic level
the branch of biology that deals with the relations of organisms to one another and their physical surroundings.
Ecology
a species on which other species in an ecosystem largely depend, such that if it were removed, the ecosystem would change drastically.
Keystone species
A species, often introduced by humans, that takes hold outside its native range.
Invasive species
An organism that obtains energy by feeding on other organisms
consumer
An ecological succession begins in an area where no biotic community previously existed, usually with no soil present.
primary sucession
A biological community of interacting organisms and their physical environment.
Ecosystem
Damage done to a habitat that results in the loss of resources that organisms need to survive, like food, water, and shelter
Habitat degradation
the system of growing a different crop in a field each year to preserve the fertility of the soil
crop rotation
An organism that breaks down wastes and dead organisms; AKA detritivores
Decomposer
Ecological succession occurs after a significant disturbance, such as a wildfire, flood, or storm. The soil is usually intact.
secondary succession
nonliving parts of an ecosystem
abiotic factors
Breakup of a habitat into smaller pieces, usually as a result of human activities.
habitat fragmentation
A natural resource that can be replaced at the same rate at which the resource is consumed
renewable source
The increase in chemical concentration in animal tissues as the chemical moves up the food chain
biomagnification
The rate at which an ecosystem returns to its original state after a disturbance
resiliance
Living parts of an ecosystem
biotic factors
capable of being readily decomposed into harmless substances by microorganisms
Biodegradable
a natural resource that is used up faster than it can be replaced by natural processes
non-renewable source
An increased concentration of a chemical within an organism over time
Bioaccumulation
The loss of some or all of a soil's ability to support plant growth
soil degredation