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CHAPTER 6 BIOMES
LESSON 1—HOW ARE ORGANISMS ON EARTH
RELATED?

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Humans are connected through the
resources they share like,
 Air
 Water
 Sunlight
 space

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If something happens to one
organism, other organisms can be
affected. Human actions affect the
biosphere.
 FOR EXAMPLE:
 CORAL REEFS.---IF REEFS ARE
DAMAGED,THE ORGANISMS THAT
DEPEND ON THEM DIE.

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INTERACTIONS with other living
things as well as non living things
is an important aspect of an
ecosystem.
 An organisms environment is anything that can affect the
organism

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MEETING THE NEEDS OF
ORGANISMS
 ORGANISMS DEPEND ON THEIR ENVIRONMENT TO MEET
THEIR NEEDS.
 THEY DEPEND ON THE ABIOTIC FACTORS AND BIOTIC
FACTORS.
 Biotic factors are the living organisms in an ecosystem
whereas Abiotic factorsare the non living parts.

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ADAPTATIONS
 All organisms in a particular ecosystem have adaptations that
help them survive there.
 For example: Polar bears have thick furs, black skin, strong
claws to adapt to the environment they live in.
 Plants growing in the arctic are small, adapted to grow low to
avoid damage from the strong winds.