Which one of the following is not correct match of the term and its description?

Options

A. `{:("Ecosystem",-,"Functional unit of nature"):}`
B. `{:("Global ecosystem",-,"Entire biosphere"):}`
C. `{:("Aquatic ecosystem",-,"Wetland"):}`
D. `{:("Natural ecosystem",-,"Crop field"):}`

Answer

D

Explanation

Crop field is considered as man-made (anthropogenic or artificial) ecosystem. Netural ecosystem is developed in nature without human involvement, e.g., forest, oceans, etc.