APES Unit 1 - The Living World: Ecosystems

Biosphere

the whole planet! the smallest part of it is the individual

biosphere order (smallest —> largest)

species, population, community, ecosystem, biome, biosphere

Popularion

Amount of 1 species (100 monkeys, 2000 fire ants, 30 earthworms, etc.)

Community

Multiple populations

Biome

a large area characterized by its vegetation, soil , climate, and wildlife; there are five major types: Aquatic, grassland, forest, desert, and tundra

Ecosystem

A geographic area with interacting biotic, and abiotic relationships

Niche

The role of an organism in its ecosystem; all of the necessary, physical chemical, and biological conditions

Symbiosis

a relationship between two organisms and an ecosystem

Mutualism

Both organisms benefit

Commensalism

One organism is benefited by the other is not affected neither positively or negatively

Parasitism

One organism is benefited whilst the other is harmed

Competitive exclusion principle

Two species competing for the same limiting resource kineticist

Competition

occurs when individuals are fighting over the same limited resource

Intraspecific

members of the same species competing

Resource partitioning

two or more species divide a resource based on differences in behavior and morphology