QUESTION 2

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QUESTION 1 1. What happens to most of the nitrogen in a leaf every autumn? It is resorbed by the tree. It is released as N 2 gas. It is broken down in soil. It is consumed by decomposers.
4 points QUESTION 2 1. Which region contains the largest amount of the global carbon pool?
4 points QUESTION 3 1. In general, litter with a C/N ratio greater than 30 leads to immobilization, litter with a C/N ratio less than 20 leads to mineralization, and litter with a C/N ratio of 20-30 leads to a balance of immobilization and mineralization resulting in no net N production. If garlic mustard leaf litter collected on the forest floor had 43.2 percent C and 1.16 percent N, this tissue would lead to __________.
4 points QUESTION 4 1. An ecologist studying productivity in a sample of grasses measures gross primary productivity as 1000 kcal/m 2 /yr and autotrophic respiration as 100 kcal/m 2 /yr. Based on these calculations, the net primary productivity would be
4 points

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