How Are Root Nodule and Arbuscular Mycorrhizal Symbioses Similar

question 72

Multiple Choice

How are root nodule and arbuscular mycorrhizal symbioses similar?

• A) They both use lipochitin oligosaccharide signaling factors to initiate root colonization.
• B) They both supply nitrogen to the host plant through nitrogen fixation.
• C) They both increase absorption of nutrients from soil.
• D) They are both required for the growth and reproduction of their host plants.

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