Which of the Following Statements About the Value of the Nitrogen

question 26

Multiple Choice

Which of the following statements about the value of the nitrogen cycle to an ecosystem is NOT true?

• A)Denitrification removes nitrogen from the atmosphere and converts it to a form that plants can use.
• B)Nitrogen fixation can occur in aquatic systems or in soil bacteria.
• C)Nitrification occurs as ammonium is converted to nitrate.
• D)Nitrification occurs as nitrogen gas is converted to nitrate.
• E)Both ammonium and nitrate ions are highly water-soluble

---

Definitions:

Natural Selection

A fundamental mechanism of evolution where organisms better adapted to their environment tend to survive and produce more offspring.

Homologous Traits

Traits shared by two or more species that were inherited from a common ancestor.

Drug Resistance

The reduction in effectiveness of a medication such as an antimicrobial or an antineoplastic in curing a disease or condition.

Virions

The complete, infective form of a virus outside a host cell, consisting of RNA or DNA within a protective protein coat.