If Rates of Nitrogen Fixation Increased Tenfold in Terrestrial Ecosystems

question 98

Multiple Choice

If rates of nitrogen fixation increased tenfold in terrestrial ecosystems, would you expect a tenfold increase in primary productivity?

• A)Yes, because nitrogen is a limiting nutrient in terrestrial ecosystems.
• B)Yes, because there is an abundance of carbon dioxide in terrestrial ecosystems.
• C)No, because there are other limiting nutrients in terrestrial ecosystems besides nitrogen.
• D)No, because there would be a higher increase in primary productivity.

---

Definitions:

Standard Error of Mean

The standard deviation of the sampling distribution of the sample mean, representing how far the sample mean is likely to be from the population mean.

Effect Size

A quantitative measure of the magnitude of the experimental effect from a study.

Standard Error of Mean

The estimation of the standard deviation of the sample mean, reflecting the variability of the sample mean from the population mean.

Two-Tailed

Pertaining to tests of statistical significance that consider both directions of deviation from a null hypothesis.