PDF Section 6 3 Biodiversity Workbook Answer Key Section 6 3 Biodiversity Workbook Answer Key 6.3.1 Define biodiversity and explain its value. 6.3.2 Identify current threats to biodiversity. 6.3.3 Describe the goal of conserva-tion biology. Vocabulary Preview Write the following terms on the board, and underline the parts as shown here: habitat , species, and biological.