Transcript What`s Living? What`s Non-Living?

LIVING:
NON-LIVING:
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Ecology - the study of the interactions of
organisms with one another and with their
environment.
Ecologist – a scientist who studies ecology
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Biotic factors
◦ The living parts of an ecosystem
 Ex.: plants, animals, fungi, bacteria
◦ Bio = living; life
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Abiotic factors
◦ The nonliving parts of an ecosystem
 Ex: water, sunlight, oxygen, temperature, soil
◦ A = non; not; without
◦ Bio = living; life
Organism
Population
Community
Ecosystem
Biosphere
Levels of Organization in an Ecosystem
* Leave space above each section label for an illustration.
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Single living thing
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A group of individuals of the same species
that live together.
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All the different populations of species that
live together in an area
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Made up of all the living andnonliving things
(biotic and abiotic factors) that interact in a
particular area
◦ Examples: prairie, mountain stream, ocean, forest
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An organism’s habitat provides it with the
things it needs to survive:
◦ Food, water, shelter
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A single ecosystem may contain many
habitats.
Organisms live in different habitats because
they have different requirements for survival.
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The part of Earth where life exists
◦ The biosphere includes the top portion of Earth’s crust, all
the waters that cover Earth’s surface, and the atmosphere
that surrounds Earth.
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The biosphere is made up of different
environments that are home to different kinds of
organisms.
◦ For example, desert environments receive little rain.
◦ Cactus plants, coyotes, and lizards are included in the life
of the desert.
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Do you think ecosystems have borders?
Explain your answer.