Stream

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Stream Ecology
Nutrient Cycling
Ecology terms
Ecology terms
Char. Of Life Macromolecules
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A calculation that estimates the area of Earth's
productive land and water required to supply the
resources that an individual or group demands, as
well as to absorb the wastes that the individual
or group produces.
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What is ecological footprint?
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A species whose status provides information on
the overall condition of the ecosystem and of
other species in that ecosystem.
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What is an indicator species?
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A method for determining the identify of
something. We used this tool on our field trip
to Miller Creek to identify macromolecules.
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What is a dichotomous key?
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These organisms can out-compete native species in
a habitat. They interfere with the natural
functioning and diversity of ecosystems.
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What are invasive species?
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This gas gets into water by diffusion from the
surrounding air, aeration and as a waste product
of photosynthesis.
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What is oxygen?
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The steps by which this element is extracted from
the nitrates of soil and water, incorporated as
amino acids and proteins in living organisms, and
ultimately reconverted to nitrates.
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What is the Nitrogen Cycle?
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This nutrient moves slowly from deposits on land
to living organisms. It is a component of DNA
and ATP.
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What is phosphorus?
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This gas is a major temperature regulator.
However, increased levels of this gas contribute
to global warming.
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What is Carbon Dioxide?
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This nutrient is used by living organisms to make
proteins and nucleic acids. Bacteria play a
major role in sequestering this nutrient from the
atmosphere so that plants can obtain this
nutrient.
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What is Nitrogen?
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If too much of this nutrient is added to
agricultural fields it can leach into surface and
ground water and accumulate. Excess levels of
this nutrient pollutes ecosystems and can cause
eutrophication in lakes !
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What is Nitrogen/ Phosphorus?
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The warming of the atmosphere by the trapping of
longwave radiation being radiated to space. The
gases most responsible for this effect are water
vapor and carbon dioxide.
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What is the greenhouse effect?
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Burning fossil fuels (coal, oil and natural gas)
release carbon dioxide into the atmosphere.
Cutting down and burning trees also impact this
effect?
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How do humans affect the atmosphere? Global
warming
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The attraction of molecules to each other on a
liquids surface. This creates a barrier between
the air and the liquid.
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What is surface tension?
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The tendency of like molecules to stick together
(water to water).
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What is cohesion?
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Nonliving components in the environment.
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What is abiotic?
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Energy cannot be created or destroyed
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What is the first law of thermodynamics?
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Organisms, Populations, Communities, Ecosystems
Biosphere
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What are the levels of organization of Ecology?
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_____ flows in an ecosystem and _______
Recycles
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ENERGY flows and MATTER recycles
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Get their food by eating or breaking down all or
parts of other organisms or their remains.
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What are consumers?
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There is a decrease in the amount of energy
available to each succeeding organism in a food
chain.
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What is the 10 Rule?2nd Law of Thermodynamics
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Living things are made of cells. Living
things obtain and use energy. Living things
grow and develop. Etc
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What are the characteristics of life?What are
the remaining characteristics?
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Maintenance of an internal environment
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What is homeostasis?
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Macromolecules found in food..
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What are carbohydrates, proteins and lipids?
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What macromolecules do Benedicts solution and
Lugols solution test for?
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What are carbohydrates? (simple sugars-like
Glucose)

• Benedicts solution is a bluish liquid. When it
  is heated in the presence of simple sugars, it
  changes color from blue to green, yellow, orange,
  or red!
• Lugols solution (IKI) is a brown liquid
  containing iodine In the presence of starch, it
  turns dark blue or black.

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Biuret solution is an indicator used to test for
____ in food.
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What is Protein?whenadded to food, Biuret
solution changes from light blue to purple, then
protein is present in the food.