What is symbiotic association between roots and fungi called

1. Which of the following is NOT true of micronutrients in plants?

a) They are required in relatively small amounts.
b) They are required for the plant to complete its life cycle.
c) They are found in molecules of small size and molecular weight
d) They typically available to plants as ions present in soil water.

2. A soil well suited for the growth of most plants would have all of the following EXCEPT:

a) abundant microorganisms b) abundant humus c) air spaces d) high pH

3. What is the symbiotic association between roots and fungi called?

a) nitrogen fixation b) mycorrhizae c) rhizobium d) trichomes

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