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Maria and Phoebe
Ecology P2
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maria placzek
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Cards (56)
What are archaea?
Ancient bacteria which are all
extremophiles
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What is a habitat?
Where an
organism
lives
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What is a population?
All the members of a given
species
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What is a community?
All members of different
species
in a habitat
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What is an ecosystem?
Interaction of a community with
abiotic
factors
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What is a biotic factor?
A living part of an
ecosystem
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Name the 4 biotic factors.
Predator
,
prey
,
competition
,
disease
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What is an abiotic factor?
A non-living part of an
ecosystem
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Name 4 abiotic factors.
Light intensity
,
temperature
,
wind speed
,
humidity
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Name 4 factors animals may compete for.
Food, water, mates,
territory
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Name 4 factors plants may compete for.
Sunlight, water,
mineral ions
,
space
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What is an adaptation?
A special
feature
for
survival
in a habitat
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What is an extremophile?
An organism adapted to extreme
environments
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Name a structural adaptation.
Sharp
teeth
or
thick
fur
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Name a functional adaptation.
Producing
venom
to catch prey
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Name a behavioral adaptation.
Hibernating
during winter
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How is a polar bear adapted to its habitat?
Thick fur and fat reduce
thermal loss
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How is a camel adapted to a desert environment?
Stores fat in
humps
for water conversion
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How is a cactus adapted to a dry environment?
Thick
stems
store water effectively
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What do the arrows in a food chain show?
The flow of energy through an
ecosystem
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What is a producer?
A green plant or algae that
photosynthesize
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Where does all the energy in a food chain originally come from?
The
sun
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What is interdependence?
Species numbers
depend on each other
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Why can't food chains support many trophic levels?
Energy
is lost at each trophic level
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Define distribution.
Where we find
organisms
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Define abundance.
How many
organisms
we
find
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How do you work out the 'mode' from data?
The one which occurs
most
often
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How do you work out the 'median' from data?
Arrange
numbers
and find the
middle
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How do you work out the 'mean' from data?
Add all
values
and divide by
total
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How do you work out the 'range' from data?
Take the
largest
value and subtract
smallest
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What is a quadrat?
A square device for
sampling
techniques
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What is the carbon cycle?
Continuous passing of carbon between
atmosphere
and organisms
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Name a process that removes carbon from the atmosphere.
Photosynthesis
by plants and algae
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Name 2 processes that return carbon to the atmosphere.
Respiration
and
decay
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What is the process by which carbon is passed along food chains?
Feeding passes carbon in the form of
glucose
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What organisms carry out decay?
Micro-organisms
like
bacteria
and fungi
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What is the water cycle?
Continuous
evaporation
,
precipitation
, and transport of water
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Define precipitation.
Rainfall
or any form of water falling
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How are clouds formed?
Through
condensation
of
water vapor
as it cools
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What is the process by which water is taken up by plants?
Transpiration
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