Question

Which of the following share same mode of nutrition?

• A. Rhizobium and lichens
• B. Lichens and Mycorrhizae
• C. Mycorrhizae and Rhizobium
• D. All of the above

Answer 1

Answer: (D)

All of the above

• Rhizobium is a genus of bacteria associated with the formation of root nodules on plants. These bacteria live in symbiosis with legumes. They take in nitrogen from the atmosphere and pass it on to the plant, allowing it to grow in soil low in nitrogen.
  
• A lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship.
  
• Mycorrhizal fungi colonize the plant's root system and develop a symbiotic association called “mycorrhiza” They form a network of fine filaments that associate with plant roots and draw nutrients and water from the soil that the root system would not be able to access otherwise.
  
• Lichens, Rhizobium and Mycorrhizae have symbiotic relationships and follow same mode of nutrition.
• So the correct answer is " All the above".