What is the biological importance of the foll | vedclass

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(A) $(i)$ In gymnospermic plants like $Pinus$,the roots have a symbiotic fungal association known as mycorrhiza,which helps in the absorption of water

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Nutrient absorption and nitrogen fixation

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(A) $(i)$ In gymnospermic plants like $Pinus$,the roots have a symbiotic fungal association known as mycorrhiza,which helps in the absorption of water and minerals.$(ii)$ In plants like $Cycas$,specialized roots called coralloid roots develop,which are associated with $N_2$-fixing cyanobacteria (like $Anabaena$ or $Nostoc$) to help in nitrogen fixation.

What is the biological importance of the following structures in gymnosperms?
$(i)$ Mycorrhiza in roots
$(ii)$ Coralloid roots

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What is the biological importance of the following structures in gymnosperms?$(i)$ Mycorrhiza in roots$(ii)$ Coralloid roots