Transcript Interactions of Living Things

Interactions of Living Things
May 2012
Living or Not Living?
• Biotic – any living thing
in an ecosystem
– Examples: (list our
class examples)
• Abiotic – any nonliving
parts of the
environment
– Examples: (list our
class examples)
• Weigand took Vance and Reed to
school on the court!!!
Organization in the Environment
• Organism - one
member of a
species
Organization in the Environment
• Population - a
group composed
of the same
species
Organization in the Environment
• Community - all
the populations
in an area;
includes plants
Organization in the Environment
• Ecosystem community of
organisms plus
their abiotic
environment
Organization in the Environment
Biosphere - where
life exists on
Earth
One yellow reef fish = organism
all yellow reef fish = population
all fish types, sea anemone,
tube worms, coral, sea weed
= community
all fish types, sea anemone,
tube worms, coral, sea weed
= community
the coral reef, water,
sunken ship,….
= ecosystem
Whole Earth
= Biosphere
Organization in the Environment
Example:
• Organism - yellow reef fish
• Population - all yellow reef fish
• Community - all fish types, sea anemone,
tube worms, coral, sea weed
• Ecosystem - the coral reef, water,
sunken ship,….
• Biosphere - Earth
Living things use energy!
Living things are divided groups by how they
get their energy.
– Producers: gets energy from sunlight
– Consumers: gets energy from other things
• Herbivore: eats only plants
• Carnivore: eats only animals
• Omnivore: eats plants and animals
– Decomposers: get energy from dead things
Living things use energy!
• Food Chain - shows energy flow from
one organism to another
Living things use energy!
• Food Webs – interconnecting food
chains in an ecosystem
Living things use energy!
• Energy Pyramid – a triangular
diagram that shows the loss of energy
as it moves between organisms
In an energy
pyramid, a
producer is
ALWAYS on
the bottom,
with a
predator on
top.