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学生说明
Learning target: Describe the needs of plants and how their habitat helps them survive.
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教师备注（学生不可见）
Link to slides used to create activity: https://docs.google.com/presentation/d/1-jy1n9tEmF5SmVxTkFNd6sZl9rme8z3I4qt0Wstb8gM/copy
