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Cards (56)
What are some threats to biodiversity?
Deforestation, modern farming, global warming
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What is an aesthetic reason for preserving biodiversity?
It
contributes
to
the
beauty
of
the
Earth
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Where do millions of people enjoy experiencing nature?
In the
countryside
,
Woodlands
, seashore
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How have artists and musicians been influenced by biodiversity?
They find inspiration in
natural beauty
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What economic reasons are there for preserving biodiversity?
Potential sources of future
medicines
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Why are tropical rainforests important for future food security?
They contain a rich
variety
of plants
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How can cross-breeding rainforest plants help crops?
By introducing
genes
to help crops thrive
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What happens if we continue destroying rainforests?
We lose
genetic biodiversity
forever
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What is a major reason for deforestation?
The production of
wood
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How can forests be preserved sustainably?
Through
selective logging
and
replanting
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What can sustainable tourism provide for tropical forests?
A valuable source of
income
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What is monoculture in farming?
Farming vast fields of only one
crop
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What are the economic risks of monoculture farming?
It presents risks due to
climate change
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How can increasing plant diversity on farms help?
It reduces risks from
climate change
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What is a consequence of farming only one crop variety?
It depletes
soil nutrients
and minerals
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How does farming a variety of crops help farmers?
It reduces the need for more
fertilizers
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What are ecological reasons for maintaining biodiversity?
Species
depend on each other in
habitats
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What role do pollinators like bees play in ecosystems?
They
help
in
the
pollination
of
plants
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What are keystone species?
Species that play a significant role in
habitats
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How do sea stars affect biodiversity in their habitat?
They prevent
mussel
overpopulation, increasing diversity
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What happens to mussel populations without sea stars?
Mussel
populations increase
dramatically
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What is the effect of increased mussel populations on other species?
They crowd out
seaweeds
,
sponges
, and
anemones
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Why is it important to maintain biodiversity in habitats?
All
species
depend on each other
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What are the main reasons for maintaining biodiversity?
Aesthetic reasons: beauty of Earth
Economic reasons: potential medicines, sustainable resources
Ecological
reasons:
interdependence
of species
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What methods can be used to maintain biodiversity?
Selective logging
Replanting
trees
Sustainable tourism practices
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What should you be able to describe by the end of the video?
In-situ
and
ex-situ
methods of
biodiversity
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What are the roles of international and local conservation agreements?
They help maintain
biodiversity
through regulations
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What is threatening biodiversity?
Human activity
is threatening biodiversity
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What happens to endangered species?
They are likely to become
extinct
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What is in-situ conservation?
Conservation in the
organism's
natural habitat
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How can in-situ conservation be implemented?
By creating a
Wildlife Reserve
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What measures are taken in a Wildlife Reserve?
Human access may be
restricted
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What happens if a species' numbers fall very low?
It might be
reintroduced
from elsewhere
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Why are invasive species removed in in-situ conservation?
To prevent competition with
protected species
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What happens to land left in the UK over time?
It naturally reverts to
Woodland
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What is succession in ecology?
Natural process of habitat change
over
time
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How can grazing organisms help protect habitats?
They prevent
succession
to
Woodland
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What are marine conservation areas used for?
To protect
endangered
marine species
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What activities are controlled in marine conservation areas?
Tourism
,
fishing
, and
oil extraction
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What is ex-situ conservation?
Conservation outside of an
organism's
habitat
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