Why did economic specialization become common in civilizations? A. There were food shortages . B. Agriculture had not caught on yet. C. There were many different jobs to do. O Domesticated animals did most of the work.

There were many different jobs to do.

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

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