a species that is vital to the survival and health of an environment, helps create an ecosystem.

multiple connected food chains in an ecosystem

The creation of a new ecosystem where one has never existed before. Begins with species likes lichens and mosses, which create soil/dirt

An organism that breaks down dead or dying organisms to return their nutrients back into the ecosystem.

A species that is not native to the area in which it is living. This can seriously damage the ecosystem.

All of the organisms of the same species in a particular ecosystem.

A triangular diagram illustrating that the amount of energy at each level of a food chain decreases.

The number of different species in a particular ecosystem.

The first species to grow and live in an new environment, like lichens and mosses, which help to create soil/dirt where there wasn't any before

The relationship between organisms in the same ecosystem fighting or competing for limited resources, such as food, water, space, or mates.

organisms with beneficial traits survive and reproduce to pass on the beneficial trait to future offspring

A characteristic that allows an organism to survive in its environment, such as camouflage, having sharp teeth, or being able to run fast.

All of the differing populations of organisms living together in one ecosystem.

the variety of species in an ecosystem

The non-living factors in an ecosystem, such as sunlight, oxygen/air, temperature, precipitation, rocks/soil.

All the living factors in an ecosystem, such as plants, animals, fungi and bacteria.

Logistic Growth Curve

an s-shaped curved graph where the population growth rises until it meets its carrying capacity, at which point it stabilizes or becomes constant

Exponential Growth Curve

a j-shaped graph where the population growth rises without stopping, this is a result of unlimited resources

Density Independent Limiting Factor

factors that limit a population's growth that DO NOT depend on the population size, typically abiotic factors like, fires, floods, tornados, or human activity

Density Dependent Limiting Factor

limiting factors affected by population size, such as food or space

diagram showing the flow of energy between organisms

separation of populations by physical barriers like mountains or rivers

rebuilding of an ecosystem after a disturbance like fire or logging

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Final Exam Vocab. P2

Biology Final Exam Vocabulary Part 2

Term	Definition
Biosphere	Where all life on Earth exists
Keystone Species	a species that is vital to the survival and health of an environment, helps create an ecosystem.
Food Web	multiple connected food chains in an ecosystem
Primary Succession	The creation of a new ecosystem where one has never existed before. Begins with species likes lichens and mosses, which create soil/dirt
Decomposer	An organism that breaks down dead or dying organisms to return their nutrients back into the ecosystem.
Invasive Species	A species that is not native to the area in which it is living. This can seriously damage the ecosystem.
Population	All of the organisms of the same species in a particular ecosystem.
Energy Pyramid	A triangular diagram illustrating that the amount of energy at each level of a food chain decreases.
Ecosystem	The number of different species in a particular ecosystem.
Pioneer Species	The first species to grow and live in an new environment, like lichens and mosses, which help to create soil/dirt where there wasn't any before
Competition	The relationship between organisms in the same ecosystem fighting or competing for limited resources, such as food, water, space, or mates.
Natural Selection	organisms with beneficial traits survive and reproduce to pass on the beneficial trait to future offspring
Adaptation	A characteristic that allows an organism to survive in its environment, such as camouflage, having sharp teeth, or being able to run fast.
Community	All of the differing populations of organisms living together in one ecosystem.
Biodiversity	the variety of species in an ecosystem
Abiotic Factor	The non-living factors in an ecosystem, such as sunlight, oxygen/air, temperature, precipitation, rocks/soil.
Biotic Factor	All the living factors in an ecosystem, such as plants, animals, fungi and bacteria.
Logistic Growth Curve	an s-shaped curved graph where the population growth rises until it meets its carrying capacity, at which point it stabilizes or becomes constant
Exponential Growth Curve	a j-shaped graph where the population growth rises without stopping, this is a result of unlimited resources
Density Independent Limiting Factor	factors that limit a population's growth that DO NOT depend on the population size, typically abiotic factors like, fires, floods, tornados, or human activity
Density Dependent Limiting Factor	limiting factors affected by population size, such as food or space
Food Chain	diagram showing the flow of energy between organisms
Geographic Isolation	separation of populations by physical barriers like mountains or rivers
Secondary Succession	rebuilding of an ecosystem after a disturbance like fire or logging

Created by: PRO Teacher Borowski

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