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Paper 2
Ecology
Environmental Change
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Created by
Mohamed Sid Ahmed
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Subdecks (8)
Biotechnology
Biology > Paper 2 > Ecology > Environmental Change
11 cards
Sustainable Fisheries
Biology > Paper 2 > Ecology > Environmental Change
16 cards
Modern Farming Methods
Biology > Paper 2 > Ecology > Environmental Change
19 cards
Food Security
Biology > Paper 2 > Ecology > Environmental Change
15 cards
Biodiversity
Biology > Paper 2 > Ecology > Environmental Change
32 cards
Global Warming
Biology > Paper 2 > Ecology > Environmental Change
18 cards
Land Use
Biology > Paper 2 > Ecology > Environmental Change
13 cards
Waste Management
Biology > Paper 2 > Ecology > Environmental Change
21 cards
Cards (168)
What should students be able to evaluate by the end of the video?
The impact of
environmental change
on
species distribution
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Are students required to learn specific organisms for the exam?
No
, specific organisms are
not
required
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What factors can affect the distribution of species?
Abiotic
or
nonliving
factors
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Name three abiotic factors that affect species distribution.
Temperature
,
availability of water
, gas composition
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How can changes in abiotic factors affect species distribution?
They can alter where species can
survive
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Where is the desert fox adapted to live?
In the
hot conditions
of the
desert
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What adaptation helps the desert fox lose heat?
Large ears
increase surface area
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Why do we not find the desert fox in Europe?
Conditions
are cooler in Europe
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What species replaces the red fox as we move north?
The
arctic fox
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How is the arctic fox adapted to its environment?
It has small ears to
retain heat
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How do abiotic factors show geographic variation?
Different
species
adapt to local
conditions
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What happens to plant distribution as water availability changes?
Different plants
adapt
to varying water levels
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Why do wildebeest migrate across Africa?
To follow
rainfall
patterns for grazing
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What seasonal behavior do many bird species exhibit?
They
migrate
for warmer conditions
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Where do swallows migrate during winter?
To warm conditions in
Africa
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How does human activity influence abiotic factors?
It alters gas levels in the
atmosphere
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What is the effect of sulfur dioxide on lichens?
Lichens
are
sensitive
to
sulfur dioxide
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Where do we find the largest numbers of lichens?
In
unpolluted
air
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What happens to dissolved oxygen levels when sewage enters streams?
Dissolved oxygen levels
decrease
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What organisms cannot live in low oxygen conditions?
Mayfly larvae
cannot survive
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What can happen to populations of species due to low oxygen levels?
Populations
can
fall
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What are the key ideas illustrated in the video regarding species distribution?
Impact of
environmental change
Influence of
abiotic factors
Geographic and seasonal variations
Effects of human activity
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What are the main types of variations in abiotic factors affecting species distribution?
Geographic variation
: Different species in different climates
Seasonal variation
: Changes in populations due to seasons
Human influence
: Pollution and habitat changes
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