Abiotic
Non-living
Biotic
Living
Competition
A common demand by two or more organisms upon a limited supply of a resource; for example, food, water, light, space, mates, nesting sites. It may be intraspecific or interspecific.
Commensalism
A relationship between two organisms in which one organism benefits and the other is unaffected
Mutualism
A relationship between two species in which both species benefit
Parasitism
one organism lives on or in another and harms it
Predator
An animal that lives mostly by killing and eating other animals
Prey
An organism that is killed and eaten by another organism
Symbiosis
A close relationship between two species that benefits at least one of the species.
the amount of rainfall in a region affects the growth of corn in a field
abiotic-abiotic
a wolf stalks, kills and eats a deer
biotic-biotic
the salinity of the lake water determines the amount of brine flies
abiotic-biotic
a tick parasitizes a raccoon by feeding on its blood
biotic-biotic
the temperature of the tundra affects how frozen the soil is
abiotic-abiotic
a population of cardinal birds takes over a tree for nesting from a population of bluebirds
biotic-abiotic
herbivore
A consumer that eats only plants.
autotroph
An organism that makes its own food
primary consumer
An organism that eats producers
tertiary consumer
An organism that eats secondary consumers
predator
An animal that hunts other animals for food
carnivore
A consumer that eats only animals.
heterotroph
An organism that cannot make its own food.
producer
An organism that can make its own food.
prey
An organism that is killed and eaten by another organism
ecosystem
a place where many things live
the sizes of population of organisms in an ecosystem typically never stays constant
true
an example of a community
all the same organisms in a particular area (like a school of fish)
organisms in a food web are dependent on
each other
biome
A group of ecosystems with similar climates and organisms