BIOL 301 final (previous quizzes) with Solutions

BIOL 301 final (previous quizzes) with Solutions net primary productivity is calculated as GPP - respiration units of GPP kJ/m2/y 6 Ways to Show Appreciation for Your Child's Teacher 0:29 / 0:54 which of the following factors is NOT used for quantifying primary productivity over time? change in consumer biomass Which is the portion of energy that an organism uses to maintain its body temperature? respired Terrestrial NPP is greatest in _____ ecosystems, and aquatic NPP is greatest in _____ ecosystems. tropical; coastal Between latitudes of 30° N and 30° S, NPP is primarily constrained by precipitation In aquatic ecosystems, trophic pyramids of biomass are inverted because the standing biomass of algae is lower than the standing biomass of consumers Assimilation energy is the percentage of consumed energy that is digested and absorbed Aquatic ecosystems typically have ¬¬¬¬¬_____ trophic levels, while terrestrial ecosystems typically have _____ trophic 5; 3-4 A trophic level has a biomass residence time of 5 years and net productivity of 3 kg/m2/y. What is the biomass in the trophic level? 15 kg/m2 Chose a logical path for a molecule of water starting and ending in the atmosphere. precipitation, infiltration, evaporation, condensation Which statement is TRUE about the global hydrologic cycle?- Precipitation is greater than evaporation in terrestrial ecosystems. Precipitation and evaporation are about equal in terrestrial ecosystems In waterlogged conditions, anaerobic metabolism of carbon compounds can cause the production of the greenhouse gas methane (CH4) Nitrogen-fixing plants such as soybeans are able to convert atmospheric nitrogen to nitrate and ammonium Which is NOT an example of a major human alteration to the global nitrogen cycle? Animal waste from agriculture Dead zones are formed when rivers that empty into oceans carry excess phosphorus and nitrate runoff. These dead zones are caused by algal blooms Which of the following does NOT significantly affect terrestrial decomposition rates? phosphorus content of litter Decomposition is more rapid in _____ forests because of _____. tropical; increased temperature and precipitation In the study of leaf decomposition in a stream in Germany using leaf litter enclosed in either fine- or large-mesh bags, researchers found that decomposition was strongly affected by invertebrates and lignin content which is not an adaptation to low oxygen aquatic environment increased metabolic activity Match adaptation to benefit prevent loss of leaf tissue produce boundary layer of still air able to take up water after brief rainfall p