Name: Page 1 of 6 Exam instructions: --Write your name on all the pages --Make sure that all 8 pages are attached. --You may notuse calculators or other electronic aids. The math needed to solve a problem should be relatively simple. If you can't do the math, just show what needs to be calculated (e.g., "answer = 0.5 x .3") --If you get hung up on a problem, skip it; return to it after you’ve answered the “easy” problems. GENERAL ECOLOGY PCB 4044C Spring 2009 EXAM I PAGE POINTS POSSIBLE SCORE 2 27 _____ 3 19 _____ 4 19 _____ 5 25 _____ 6 10 _____ TOTAL 100 _____
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Name: Page 2 of 6 2-1. Please write in the appropriate letter for the term that matches the definition (2 points each). LetterDefinitionTermi___ 1. Nutrient-poor a.Hadley cell h___ 2. The microbial process through which NH4+→NO3-b.Biome j___ 3. Differential reproductive success c.Benthic zone g___ 4. Physical expression of genotype d.Fecundity c___ 5. Sediments at the bottom of a body of water e.Assimilation efficiency b___ 6. Communities grouped by climate and plant form f.Forb a___ 7. Vertical atmospheric circulation pattern in tropics g.Phenotype d___ 8. # of offspring produced h.Nitrification e___ 9. Assimilated:ingested energy ratio i. Oligotrophic f___ 10. Broad-leaved, herbaceous plant j.Natural selection k.Ingestion efficiency l.Graminoid 2-2. a. Rank these global carbon reservoirs in order from largest to smallest, with 1 as the largest and six as the smallest (5 points). 5____Atmosphere 750 Pg C 4____Terrestrial vegetation and soils 2,300 Pg C 3____Fossil fuels3,700 Pg C 1____Rocks 18,000,000 PgC 6____Marine biota 3 Pg C 2____Intermediate and deep oceans 38,000 Pg C b. What is the unit used to describe pools and fluxes in the global carbon cycle and how many grams does this unit contain (2 points)? Pg C = 1015g