Type of organism that carrie out nitrogen fixation

Biotic or Abiotic resources in the environment that limits population size

An organism that makes its own food

Increase in Earth's temperature from the buildup of CO2 and other gases in the atmosphere

An organism that cannot make its own food

Organisms that breakdown and feed on waste and dead organisms

The role an organism plays in its community

Organism that eats plants and meat

Ecological model showing the relationships that form a network of interactions among organisms in a community

Diagram showing the flow of energy within an ecosystem

(+, +); Symbiotic relationship in which both species benefit.

(+, -); Symbiotic relationship in which one species benefits and the other is harmed.

Different species living in the same area

Same species living in the same area

One organism captures and feeds on another

The number of organisms and environment can support over a period of time

As a population gets larger, it also grows faster; createsa J-shaped curve

When an organism moves INTO a population

When an organism moves OUT of a population

The greatest threat to biodiversity

Occurs when a species is near extinction

Number and variety of organisms found within an ecosystem or specific area

An organism that is introduced into a new environment, where it is not native

Density-Dependent Factors

Limiting factors that depend on population size.

Density-Independent Factors

Affects all populations in similar ways, regardless of the population size.

Growth and development of an area by plants and animals that has not been previously occupied by a community.

Growth and development of an area by plants and animals that has been disturbed.

Bacteria convert nitrogen gas into ammonia, so it can be easily used bu the plant.

Occurs when bacteria return nitrogen back into gas state.

Process where plants release water through stomata.

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Biology Study Cards

Ecology-Population Biology Study Cards

Term	Definition
Bacteria	Type of organism that carrie out nitrogen fixation
Limiting Factors	Biotic or Abiotic resources in the environment that limits population size
Producer/Autotroph	An organism that makes its own food
Global Warming	Increase in Earth's temperature from the buildup of CO2 and other gases in the atmosphere
Consumer/Heterotroph	An organism that cannot make its own food
Decomposer	Organisms that breakdown and feed on waste and dead organisms
Niche	The role an organism plays in its community
Herbivore	Organism that only eats plants
Omnivore	Organism that eats plants and meat
Carnivore	Organism that only eats meat
Food Web	Ecological model showing the relationships that form a network of interactions among organisms in a community
Trophic Lever	Diagram showing the flow of energy within an ecosystem
Mutualism	(+, +); Symbiotic relationship in which both species benefit.
Parasitism	(+, -); Symbiotic relationship in which one species benefits and the other is harmed.
Community	Different species living in the same area
Population	Same species living in the same area
Predation	One organism captures and feeds on another
Carrying Capacity	The number of organisms and environment can support over a period of time
Exponential Growth	As a population gets larger, it also grows faster; createsa J-shaped curve
Habitat Degradation	Damage to habitat by pollution
Immigration	When an organism moves INTO a population
Emigration	When an organism moves OUT of a population
Habitat Loss	The greatest threat to biodiversity
Endangered	Occurs when a species is near extinction
Demography	Study of human populations
Biodiversity	Number and variety of organisms found within an ecosystem or specific area
Invasive Species	An organism that is introduced into a new environment, where it is not native
Density-Dependent Factors	Limiting factors that depend on population size.
Density-Independent Factors	Affects all populations in similar ways, regardless of the population size.
Primary Succession	Growth and development of an area by plants and animals that has not been previously occupied by a community.
Secondary Succession	Growth and development of an area by plants and animals that has been disturbed.
Nitrogen Fixation	Bacteria convert nitrogen gas into ammonia, so it can be easily used bu the plant.
Denitrification	Occurs when bacteria return nitrogen back into gas state.
Transpiration	Process where plants release water through stomata.

Created by: Shadowslicah

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