Chapter 1 Vocabulary Name:__________

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Across
  1. 3. 呼吸
  2. 6. 应激性
  3. 7. a sudden change in the internal or external environment
  4. 8. the process where a living organism reacts to changes or events in its external environment or internal body
Down
  1. 1. the scientific process of grouping life forms into categories based on shared characteristics
  2. 2. 营养摄入
  3. 4. 排泄
  4. 5. another word for trait