Quiz 2 ans

Quiz 2 ans - (a) A (b) B (c) same toxicity (d) undecided...

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ENCE 215 Quiz 2 ( average 7.9 ) Nov 6, 2007 1. ________ c Which species has more Hg content (in μ g/kg)? (a) small fish (b) large fish (c) duck (d) algae 2. ___________ c The so-called J curve is: (a) logistic growth (b) restricted growth (c) unrestricted growth (d) linear growth 3. _____________ a The compound A exhibits LC 50 = 2 mg/L, while compound B 20 mg/L. Which compound is more toxic? (a) A (b) B (c) same toxicity (d) undecided 4. ____________ b Based on the following two sets of data, which sample set is more toxic?
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Unformatted text preview: (a) A (b) B (c) same toxicity (d) undecided Sample A Sample B Compound Concentration, ng/L TEF Compound Concentration, ng/L TEF Dioxin a 20 1 Dioxin a 25 1 Dioxin b 400 0.01 Dioxin b 25 0.01 total 420 total 50 5. ___________ c Based on the following equations. ) 1 ( K P P r dt dP − = )] exp( ) [( 1 rt P P K K P t − − + = If the current population (P o ) is equal to the carrying capacity, what would be the population 10 years from now? (a) > P o (b) < P o (c) = P o (d) undecided...
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This note was uploaded on 04/07/2008 for the course ENES 215 taught by Professor Biegel during the Fall '08 term at Maryland.

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