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section A- natural hazards
ecosystems
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Created by
Ellie
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Cards (9)
what is an ecosystem?
it included all the
living
and
non living
parts of an area
what
is a producer?
eg
grass
- used
sunlight energy
to produce food
what is a consumer?
gets its
energy
by eating other
organisms
, they can eat producers or other consumers
what
is a decomposer?
is an organism that eats its energy by breaking down dead material. bacteria and fungi are
decomposers.
(fallen leaves, animal remains)
what is the nutrient cycle showing?
shows how
nutrients
move through an
ecosystem
what is the nutrient cycle?
when dead material
decomposes
nutrients are released into the soil
these nutrients are taken up from the soil by the plants. the plants may be eaten by consumers
when plants or consumers die the nutrients are returned to the soil
the transfer of nutrients is called nutrient cycling
what does a food chain show?
a food chain shows
what
eats what
what
does a food web show?
a food web shows lots of food chains and how they
overlap
each part of an ecosystem depends on other
parts
eg consumers may depends on producers as a
habutat
and a source of food.