Environmental 3200 Exam 2 Practice Questions and Answers | Environmental
Science Review Guide
Exponential Growth Model - ANS ✔✔A population model that grows by multiplying the initial
size by a factor that exponentially increases over time.
Logistic Growth Model - ANS ✔✔A population model that grows by an exponential factor, but
has limit to its maximum value.
Monod Kinetics Model - ANS ✔✔A population model that combines the other two and adds in
a resource factor.
Energy Flow - ANS ✔✔In an ecosystem, the organisms present only require energy for power,
and chemicals to provide substance. What does this describe?
Biochemical Oxygen Demand (BOD) - ANS ✔✔Oxygen demand resulting from microbiological
waste oxidation
Carbonaceous Biochemical Oxygen Demand (CBOD) - ANS ✔✔Biochemical oxygen demand
exerted by microorganisms consuming carbon-based compounds such as sugars, fats, and
carbohydrates
Nitrogenous Biochemical Oxygen Demand (NBOD) - ANS ✔✔Biochemical Oxygen Demand
exerted by microorganisms consuming nitrogen-based compounds.
What are the meaning of:
-Lo
-Lt
-kL
Science Review Guide
Exponential Growth Model - ANS ✔✔A population model that grows by multiplying the initial
size by a factor that exponentially increases over time.
Logistic Growth Model - ANS ✔✔A population model that grows by an exponential factor, but
has limit to its maximum value.
Monod Kinetics Model - ANS ✔✔A population model that combines the other two and adds in
a resource factor.
Energy Flow - ANS ✔✔In an ecosystem, the organisms present only require energy for power,
and chemicals to provide substance. What does this describe?
Biochemical Oxygen Demand (BOD) - ANS ✔✔Oxygen demand resulting from microbiological
waste oxidation
Carbonaceous Biochemical Oxygen Demand (CBOD) - ANS ✔✔Biochemical oxygen demand
exerted by microorganisms consuming carbon-based compounds such as sugars, fats, and
carbohydrates
Nitrogenous Biochemical Oxygen Demand (NBOD) - ANS ✔✔Biochemical Oxygen Demand
exerted by microorganisms consuming nitrogen-based compounds.
What are the meaning of:
-Lo
-Lt
-kL