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Ap® biology 2008 scoring guidelines (form b) question 1 1 measurements of dissolved oxygen (do) are used to determine primary productivity in bodies of water • explain the relationship of dissolved oxygen to primary productivity primary productivity (4 points maximum) o primary productivity: rate at which. Ap® biology 2008 scoring guidelines question 4 4 flowering plants have evolved various strategies for fertilization (a) describe the process of fertilization in flowering plants (3 points maximum) double fertilization (2 points maximum) • sperm + egg → zygote (2n)/fertilized egg • sperm (n) + 2 polar nuclei (n+n.
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