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NOTE TO INSTRUCTOR:

Explore the symbiotic relationship between legumes and bacteria by analyzing nodules for nitrogen fixation. Understand the effects of this symbiosis on bacterial populations. Exercise caution when using sharp cutting utensils.

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NOTE TO INSTRUCTOR:

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  1. NOTE TO INSTRUCTOR: This lab uses sharp cutting utensils (either scissors, razor blades, or scalpel) – extreme care should be used.

  2. Description: Goals: Explain carbon and nitrogen cycles. Define symbiosis and state the effects of symbiotic relationships on populations. Legumes Symbiosis Lab: Examine the nodules of legumes (Lima beans and Soybeans) planted on “Day 0” as a symbiotic relationship between plants and bacteria.

  3. Objectives: Day 17 Analyze nodules of legumes for nitrogen fixation. State the effects of symbiosis of legumes on bacterial populations.

  4. Today… Today you will be completing a lab. There are several different parts and you will be using sharp cutting utensil – BE CAREFUL! When told, move into your groups and listen for instructions. Remember: • Be cautious and attentive • Wear apron, and gloves at all times • Follow instructions and ask questions if you are unsure what to do.

  5. Objectives: Day 17 Analyze nodules of legumes for nitrogen fixation. State the effects of symbiosis of legumes on bacterial populations.

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