Category C A group of organisms that are physically

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Transcript Category C A group of organisms that are physically

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A group of
organisms that are
physically similar
and can reproduce
to produce fertile
offspring
species
A relationship
between two
species. Both live
together and both
benefit
mutualism
All the members
of one species
living together in
a particular area
population
The living parts of
an ecosystem
Biotic factors
All the different
populations that
live together in one
area
community
The nonliving parts
of an ecosystem
Abiotic factors
When animals
struggle with each
other to survive in a
habitat with limited
food, shelter and
water
competition
The conditions in an
environment, like
food or space, which
prevent organism
populations from
increasing are…
Limiting factors
A relationship
between two species.
They live together
and neither one is
helped or harmed.
commensalism
The behaviors and
physical characteristics
of species that allow
them to live successfully
in their environment
are…
adaptations
An organism’s role
or job in the
environment
niche
The largest
population that an
environment can
support is its
Carrying capacity
If a population is
very large or spread
out, ecologists use
what method to
estimate population
size?
sampling
A relationship
between two species.
One organism lives
off and harms
another organism
parasitism
All the nonliving
and living things
that interact in an
area
ecosystem
Population density = number of organism /area
Students counted 20 butterflies in
a 2m by 2m section of a field.
What is the population density of
butterflies in that section
Area=2m x 2m
A=4m2
Population Density=20 butterflies
4 m2
POPULATION DENSITY =
5 butterflies per m2
The entire field measured 40 m
by 40m. Estimate the total
population of butterflies in the
entire field. (Use 5 butterflies
per m2)
A= 40m x 40m
A=160m2
1600m2
X 5 butterflies per m2
8000 butterflies
Abiotic or Biotic?
Sunlight
Abiotic
Abiotic or Biotic?
ferns
biotic
Abiotic or Biotic?
rabbits
biotic
Abiotic or Biotic?
Your little
brother/sister
Biotic
Abiotic or Biotic?
rocks
abiotic
Abiotic or Biotic?
soil
Abiotic
Abiotic or Biotic?
cows
Biotic
Abiotic or Biotic?
air
abiotic
Abiotic or Biotic?
Television?
abiotic
Abiotic or Biotic?
fungus
biotic
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