Ecosystems

ecosystem The living and non-living parts of the environment in a specific area. (Ecosystems can be really small or really large!) ecology The study of how living things are related each other and to their natural environment. Environment Everything that surrounds an organism and influences it. The study of how living things are related each other and to their natural environment. Biotic Factors The living parts of an ecosystem such as plants and animals. Abiotic Factors The non-living parts of…
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mutualism
a symbiotic relationship in which both species benefit from the association(win/win)
symbiosis
any relationship in which two species live closely and interact
commensalism
occurs when one species benefits from the association while the other is neither helped nor harmed(win/whatever)
parasitism
occurs when one organism lives on or inside another organism and harms it (win/lose)
predator
An organism that eats other organisms to live.
prey
The organism that gets eaten.
organism
a single living thing
biotic factor
living factors in an ecosystem
abiotic factor
The non-living parts of an ecosystem such as soil, climate and rainfall.
ecosystem
a system formed by the interaction of a community of organisms with their physical (abiotic) environment
producers
...organisms that use sunlight directly to make food through a process called photosynthesis.
consumers
...organisms that eat producers or other organisims for energy
decomposers
organisims that get energy by breaking down theremains of dead organisms.
scavengers
animals that feed on the bodies of dead organisms.
herbivore
..., A consumer that eats only plants.
carnivore
..., An animal that eats other animals
omnivore
..., An animal that eats both plants and animals
food chain
..., A series of steps in which organisms transfer energy by eating and being eaten
food web
..., A community of organisms where there are several interrelated food chains
energy pyramid
..., A diagram that shows the amount of energy that moves from one feeding level to another in a food web
limiting factors
...when resources such as food, water or space become limited, Anything that limits (restricts) the size of a population
competition
...when two or more individuals or populations try to use the same limited resource such as food.
available resources
the components of an ecosystem (biotic or abiotic) that an organism needs that are currently present
invasive species
an organism that is non-native and harmful to the ecosystem
trophic cascading
how the reintroduction or removal of a signal organism can cause changes to the rest of the population
predator-prey population cycle
how predator and prey cause each other's populations to continuously cycle up and down
photosynthesis
Plants use the sun's energy to convert water and carbon dioxide into sugars
cellular respiration
the process by which cells use oxygen to release stored energy from food
ATP
main energy source that organisms use for most of their work (i.e. moving, growing)
cycling of matter
series of steps or cycle that allows abiotic elements to be used over and over again
flow of energy
energy (usually sunlight) transformed to chemical energy by autotrophs, all eventually lost as heat
population
A group of individuals that belong to the same species and live in the same area
glucose
A simple sugar that is an important source of energy.
sun light
all energy systems and trophic levels on earth begin with this main energy source
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