Refer to the Figure

question 30

Multiple Choice

Refer to the figure.
What is the best description of the relationship identified by van der Heijden et al. between the average shoot biomass of the target plants and the number of mycorrhizal fungal species associated with them?

• A) When the number of species is small, shoot biomass is also low; as the number of species increases, shoot biomass also increases.
• B) When the number of species is small, shoot biomass is low; as the number of species increases, shoot biomass rapidly increases, then begins to level off.
• C) When the number of species is small, shoot biomass is low; when the number of species is moderate, shoot biomass is high; when the number of species is high, shoot biomass is low.
• D) The number of species has no effect on shoot biomass.

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Definitions:

Bond Ratings

Assessments made by credit rating agencies on the creditworthiness of corporate or governmental bonds, impacting the interest rates offered.

Amortized Debt

A debt in which the principal is repaid over the life of the loan rather than in a lump sum at the end.

Market Interest Rates

The prevailing rates at which borrowers can obtain loans and investors can receive returns in the financial market.

Bond Prices

The amount of money investors are willing to pay for bonds, inversely related to interest rate changes.