Please Use the Following Information to Answer the Questions Below

question 44

Multiple Choice

Please use the following information to answer the questions below.
A scientist conducts an experiment to quantify the effect of mycorrhizae and soil nitrogen levels on plant growth in a grassland.The experiment has four treatments: (1) mycorrhizae present and ambient levels of nitrogen, (2) mycorrhizae present and nitrogen added, (3) mycorrhizae absent and ambient levels of nitrogen,and (3) mycorrhizae absent and nitrogen added.After four weeks,the scientist removes the aboveground plant material for weighing.
Figure 42.4
-What conclusion is best supported by Figure 42.4?

• A)With ambient nitrogen levels,growth is limited even when mycorrhizae are present.
• B)Mycorrhizal associations result in the highest NPP levels regardless of nitrogen level.
• C)Interactions with mycorrhizae are always positive mutualistic fungal-plant interactions.
• D)Mycorrhizae should be added to restore successfully grasslands with high soil nitrogen.

---

Definitions:

Salvage Value

The calculated remaining value of an asset after it has served its anticipated lifetime.

Opportunity Costs

Missing out on possible advantages from various alternatives upon deciding on one.

Sunk Cost

A cost that has already been incurred and cannot be recovered or refunded, and thus should not influence future financial decisions.

Book Value

Book value is the net value of a company's assets found on its balance sheet, calculated as total assets minus total liabilities and intangible assets.