The mycorrhizae present in association with higher plant roots are best described as:
Correct answer: B. Critical link species
- A. Keystone species
- B. Critical link species
- C. Edge species
- D. Edaphic pod species
Explanation
Mycorrhizae link plant roots with soil fungi, improving nutrient and water uptake while receiving carbohydrates from the plant, so they function as a critical ecological link. The other labels are not standard descriptions of this root-fungus association.
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