The figure shows the cross section of lichen. Can you identify which components are shown in yellow and green?

Yellow: Algae, Green: Bacteria

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Yellow: Fungus, Green: Algae

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Yellow: Algae, Green: Fungus

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Yellow: Bacteria, Green: Algae

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Solution

The correct option is B Yellow: Fungus, Green: Algae
Lichens are not single organisms. They are made up of a fungus and algae in a symbiotic relationship. The algae produce food by photosynthesis while the fungus provides protection. The yellow thread-like structures in the diagram are the fungal component, and the green coloured structures are the algal component of the lichen.

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The figure above shows the cross section of lichen. Can you identify which components are shown in green and blue?

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