Chapter 3 Review Quiz
Terms in this set (28)
Which activity is currently changing the carbon cycle?
Combustion of fossil fuels
what element is the most abundant in the atmosphere?
Which ecosystem is the most productive?
Swamps and Marshes
Which best describes the concept of gross primary production?
Total amount of solar energy that producers capture via photosynthesis
Which example supports the intermediate disturbance hypothesis?
Forests that are prone to natural forest fires have a greater diversity of species
What effect would clear-cutting an area within a watershed have on the water quality of a river running through the watershed?
Increase in nutrient concentration in the waters of the clear-cut watershed
A wetland ecosystem has an NPP of 1.02kg/c/m2/year and a GPP of 2.80 kg/c/m2/year. How much carbon is being used during respiration of producers?
Choose the correct sequence for energy flow within an ecosystem
At which stage of the hydrologic cycle are conditions most likely to contribute to the development of an algal bloom?
which process uses water to transport nutrients through soil?
Which of the following is the approximate efficiency of the energy transfer as energy flows through the food chain?
Which is a biotic factor?
Looking at the ecological pyramid above, what would be the most likely number of joules to fill in X,Y, and Z?
x=100; y=1000; x=10,000
Which ecosystems are considered to be the most diverse?
Ecosystems experiencing intermediate levels of disturbance
Which element is the primary component of fossil fuels?
Which of the following are needed for photosynthesis?
water, solar energy, and carbon dioxide
In which step of the nitrogen cycle do plants absorb nitrogen compounds?
What is watershed?
an area of land that drains to a particular water body
After a forest fire, a badly damaged ecosystem recovered rapidly. This ecosystem has
Which is biotic?
I and III; decomposers and producers
Which organism is a primary consumer?
What happens during nitrogen fixation?
Atmospheric nitrogen diffuses into the soil and is converted into ammonia
An ecosystem containing a forest that has been clear-cut showed a dramatic decrease in the amount of nutrients and energy that were cycled in the ecosystem. This ecosystem has
What human activities have affected the phosphorus cycle?
I and III; creation of fertilizers and use of dishwashing detergent
Which best describes the concept of net primary production?
Energy captured minus energy lost
Which is considered the most important element in living organisms?
Which group of organisms performs cellular respiration?
I, II, and III; autotrophs, heterotrophs, and decomposers
which is NOT a part of the carbon cycle?