QUIZ: Definition of Ecology, Ecological Units, Habitat, Niche, Competition, and Symbiosis Flashcards
ecology defined means..
the study of home or dwelling place
a population is defined as
being made up of members from the same species, plants, animals etc. living in a given location
(population) in order to be classified in the same species, organisms must
be able to produce fertile offspring
a community is made up of
two or more populations living in a given area. (it can be as large or as small as you wish to study)
an ecosystem is
all the biotic and abiotic factors in a given area
biotic factors are
the living things
abiotic factors are
the nonliving things such as…
- light
-air
-water
an ecosystem/abiotic and biotic factors are the most..
common unit studies by ecologists
biosphere is also known as
the global ecosystem
a habitat is
the area an organism lives in
biosphere
that are of the planet in which life can be found (air,water,on land,below the surface)
niche definition
the role or position an organism has in a ecosystem
we also have competition called
“the struggle for existence”
competition is
organisms competing for food, habitat, and mates
the more similar niche and habitat requirements…
the stronger the competition is
interspecies competition
competition between two different species
intraspecies competiton
competition between members of the same species
strongest type of competition as the organisms have exactly the same niche and habitat requirements
intraspecies
symbiosis
a living arrangement between two different species
mutualism
in this type of symbiotic relationship, both organisms benefit
mutualism can be represented as
” +,+ “
commensalism
in this type of symbiotic relationship, one organism benefits and the other is neither helped nor harmed
commensalism can be represented as
” +, 0”
parastitism
in this type of relationship one organism benefits at the expense of the other (harmed)
parastitism can be represented as
”+,-“
an organism that benefits from parastitism is called the
parasite
an organism that is harmed from parastitism is called the
host
