Why Do Some Plants,like Beans and Peas,contain Bacteria in Compartments

question 7

Multiple Choice

Why do some plants,like beans and peas,contain bacteria in compartments in their roots?

• A) These friendly bacteria help the plant fight off disease-causing bacteria in the soil.
• B) These bacteria are capable of nitrogen fixation and will provide the plant with nitrogen in exchange for carbohydrates.
• C) Peas and beans form these compartments in their roots to block these bacteria from infecting the rest of the plant.
• D) These bacteria increase the efficiency of root hairs' absorption of water.