Keystone: Topic 9 Ecology

Levels of the ecosystem
Individual
Population
Community
Ecosystem
Biome
Biosphere
What makes its own food
An autotroph
What eats other organisms for food
Heterotrophs
When you move up an energy pyramid, the amount of available goes ____
Down
Difference between a food web and food chain
Food chain is a linear relationship
Food web is multiple interconnected chains
Difference between biotic and abiotic
Biotic is living things that affect organisms
Abiotic is non-living things that affect organisms
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Competition is
Multiple organisms fighting for some resource
Predation is
Organism that consumes their prey
Symbiosis is
2 species are close to each other
Mutualism
Both benefit
Commensalism
One benefits other is unaffected
Parasitism
One benefits other is harmed
Species that are naturally found in a location is…
Native
Species that are accidentally or purposefully placed in to a new area
Invasive
Threatened species are…
Those that have a possibility of becoming extinct
Endangered species are…
Species that are close to becoming extinct
Extinct species are…
Species whom are no longer on our planet
Succession is
Recovery of an ecosystem after a disaster