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APES NPP Exam Questions And Answers
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APES NPP Exam Questions And AnswersNPP - Answer refers to the RATE of photosynthesis minus respiration
Does NPP vary on ecosystems? - Answer yes
Gross Primary Productivity - Answer total amount of solar energy that producers in an
ecosystem capture via photosynthesis over a given amount of time
GPP - Answer NPP plus respiration
Net Primary Productivity - Answer the energy captured by producers in an ecosystem
minus the energy the producers respire
NPP - Answer Gross Primary Producer- respiration (measures the rate of Energy
production over length of time)
Biomass - Answer The total mass of all living matter (tissue) in a specific area. Biomass
is organic and they're made from nutrients (inorganic)
Standing Crop - Answer the amount of biomass present in an ecosystem at a particular
time. (measures amount of energy in a system at that time)
ecological efficiency - Answer the portion of consumed energy that can be passed from
one tropic level to another.
10% law - Answer = ecological efficient
, tropical pyramid - Answer the distribution of biomass, numbers, or energy in each tropic
level
Secondary Productivity - Answer amount of chemical Energy in the consumers food that
is converted to their own new biomass in a given time period.
productivity is highest where temperatures are _____ and water and solar energy are
_____ - Answer warm, high
what terrestrial ecosystems has the highest NPP? - Answer tropical rain forests, swamps
and marshes
what aquatic ecosystems has the highest NPP - Answer bays(estuaries)
what is an estuaries? - Answer where freshwater nutrients in rivers meet shallow
nutrients near the mouth of the ocean
Why is NPP greatest at the equator but decreases when you approach the poles? -
Answer The equator receives the most direct angle of Solar energy. The energy increases
rate of the water cycle so there's plenty of water and nutrients. There is less available
solar energy, heat and nutrients as you approach the poles.
why does the ocean have the highest overall average NPP - Answer Because of the
massive size of the open ocean
what accounts for the large difference in NPP among different ecosystems? - Answer
ecosystems vary in the amount of sunlight, water and nutrients they receive
which ecosystems would vary the most over the course of the year - Answer seasonal
climates, such as temperate regions
what seasons have increased rates of NPP - Answer Warmer seasons. Late Spring and
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