Which benefit to alder trees, especially after clear-cutting, occurs through symbiotic bacteria?

💡 Explanation

Alders benefit from nitrogen fixation carried out by symbiotic Frankia bacteria because this increases available nitrogen vital for growth, therefore establishing a base nutrient level, rather than increased water or heavy metal tolerance.

• Which risk increases when a tree experiences reduced stomatal conductance?
• Which risk increases when migratory birds encounter prolonged intense headwinds?
• Which consequence results when a C4 plant's mesophyll cells are damaged, impairing PEP carboxylase function?
• Which gas exchange inefficiency occurs when swim bladder volume change lags during rapid ascent?
• Which structural outcome maximizes soaring efficiency when a raptor adjusts its alula feathers during flight?
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