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Levels of
Organization
Biotic or Abiotic
Ecological
Relationships
Cycles
Energy Flow
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A single group of the same
species living in the same
place at the same time
What is a population?
Several populations of
living organisms that live
together in the same
ecosystem
What is a community?
All the aquatic
and land biomes
put together.
What is the
biosphere?
A single living
plant or animal.
What is an
organism?
The community
and its abiotic
factors.
What is an
ecosystem?
The living portion
of an ecosystem.
What is biotic?
Examples are
rainfall,
temperature, and
light.
What are abiotic factors?
The biotic process of
the water cycle that
returns water to the
atmosphere
What is transpiration?
Examples include predators,
microbial disease, or the
amount of producers in an
ecosystem.
What are biotic factors?
The biotic process of breaking
down dead organic matter
and returning the nutrients to
the soil.
What is decomposition?
When organisms
battle for resources
such as food, space,
or mates.
What is competition?
This is an example
What is Commensalism
A lion eating a zebra.
What is predation or predatorprey relationship?
A relationship in which one
obtains nutrients from the
other but does not kill it?
What is parasitism?
A relationship in which
both organisms benefit.
Mutualism
A process performed by soil
bacteria that removes
Nitrogen gas from the air
and converts it into usable
forms for plants.
What is Nitrogen Fixation
When surface waters of lakes or oceans are
turned into water vapor by the heat of the
sun.
What is evaporation?
An essential element for
building proteins.
What is Nitrogen?
Carbon Dioxide is removed and
added to the atmosphere through
these two biotic processes.
What is photosynthesis and
respiration?
The burning of fossil fuels such
as coal, oil, or natural gas.
What is combustion?
All food chains start with
these organisms.
What are producers?
The original source of energy for
all life on earth?
What is the sun?
Organisms who only eat plants.
What are herbivores
(primary consumers)?
Example pictured below
What is a food
web?
A model showing the reduction
of energy, numbers of
organisms, or biomass?
What is a Ecological
Pyramid?
Make your wager
At each trophic level
90% of this is lost as
heat before being
transferred up to the
next level.
What is energy?