Green algae and fungal species of ascomycetes form a mutualistic association with each other. This type of association is identified asI. lichenII. ectomycorrhizalIII. Endomycorrhiza
Correct answer: A. I only
- A. I only
- B. II only
- C. III only
- D. II and III
Explanation
The correct answer is 'I only.' Lichens are a mutualistic association between green algae and fungal species of ascomycetes. In this symbiosis, the algae provide photosynthetic products to the fungus, while the fungus provides protection and access to nutrients. The options II and III refer to different types of mycorrhizal associations, which involve fungi and plant roots, not algae.
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Fungi are mainly multicellular, non-photosynthetic organisms with chitinous cell walls that obtain nutrients by extracellular digestion and absorption. Coverage includes hyphae, mycelium, spores, yeast, moulds, mushrooms, decomposer and parasitic roles, and the differences between fungi, plants and bacteria.
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