Download Chapter 5, Lesson 1 Interactions in an Ecosystem

Chapter 5, Lesson 1
Interactions in an Ecosystem
ecosystem
abiotic factor
biotic factor
population
community
ecology
habitat
niche
producer
decomposer
consumer
topsoil
humus
ecosystem – all the living and
non-living things in an area
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abiotic factor – the non-living
parts of an ecosystem
minerals
water
light
air
temperature
soil
biotic factor – the living parts of
an ecosystem
animals
plants
protists
bacteria
fungi
population – all the organisms of
the same species living in an area
community – all the populations
living in an area
ecology – the study of how all
things in an ecosystem interact
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habitat – the place where an
organism lives
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links!
niche – the role of an organism in
its community
What does the species eat?
What eats the species?
What environment does the species need?
Is the species active by night or by day?
NO TWO SPECIES CAN FILL THE SAME NICHE!
producer – an organism that produces
oxygen and food like plants and algae
consumer – animals are consumers.
They eat algae, plants, or other animals.
decomposer – organisms, such as bacteria, fungi,
and worms that break down dead plants and
animals into useful things like minerals that enrich
the soil.
topsoil – the top layer of soil
humus – partly decayed plant matter