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Biology paper2
Topic 9
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nitrogen cycle
Biology paper2 > Topic 9
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carbon cycle
Biology paper2 > Topic 9
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water cycle
Biology paper2 > Topic 9
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Cards (53)
Organism
is an
individual living thing
population
is all
organisms
of a
particular species
living in a
habitat
Community
is
lots
of
different populations
together
ecosystem
is the
interaction
of a
community
of
living organisms
with the
non-living
parts
interdependence
is when
organisms
in an
area
need each other for
resources
Habitat
is where
organisms normally live
Energy
is used ti
grow
,
repair
,
move
and
excrete
Biotic
factors are
living
factors that effect
organisms
Abiotic
factors is
non-living
factors that effect
organisms
Parasites
are
microorganisms
that live in or on a
host organism
and causes
harm
Animal
parasites :
threadworms
,
leeches
,
lice
,
tics
plant parasites
:
mistletoe
,
love-vine
, corpse
lily
fungi parasites:
ringworm
,
athletes foot
Sludge
worms and
blood
worms prove
water pollution
Freshwater shrimps
and
stonefly
are in
clean
water
blackspot fungus
and
Lichens
show
good air quality
abiotic factors :
water
,
wind
,
light
,
temperature
biotic
factors :
disease
,
competition
,
predation
Energy
is
lost
so not all of it gets
transferred
in the
food web
fish
farming
involves
small
spaces
and aims to produce
more
fish
of the same type while
reducing
overfishing
fish
farming is
high
maintenance
and
reduces
the
biodiversity
eutrophication
is the
addition
of more
nutrients
to an
ecosystem
Fertilizers
are
washed
into the
water river
/
stream
which causes
algae bloom cycle
to take place
marine plants
are killed because of lack of
sunlight
and
decomposers
using
oxygen
Water become
anoxic
and all
aquatic organisms die
Reforestation
: the
replanting
of
trees
in
areas
that have been
cleared
conservation
is
protecting
the
environment
by
reducing
the amount of
resources
used and
waste
produced
eutrophication
causes
algae blooms
which
block sunlight
from reaching other
organisms
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