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Biology Year 10 Mocks
B3 - Living Together: Food and Ecosystems
Definitions
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Glucose
Made of
carbon,
hydrogen,
and
oxygen
atoms
A
carbohydrate
Can be used to make other carbohydrates like
cellulose
and
starch
Starch is a storage
molecule
that can be converted back to glucose
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Cellular
respiration
Glucose molecules broken down to make energy available for chemical reactions in cells
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Bioaccumulation
Toxic substances become more
concentrated
as they are passed up a
food chain
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Eutrophication
Ecosystem's response to
addition
of artificial or natural substances to an
aquatic
system
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Habitat
The place an organism
lives
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Population
A group of
organisms
of the same species living and
breeding
together in one habitat
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Community
A collection of different
populations
coexisting in a
habitat
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Species distribution
The way a species is
organised
over a certain area - uniform,
random
, or clumped
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Species abundance
The number of
organisms
of one type over a certain area, higher abundance usually indicates
ecological
success
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