Colonized nations were dominated by european countries because they
a. probably held desired resources, including land and labor
b. greeted the colonists innocently
c. allowed european countries to take advantage of them
d. so many of the population were weakened due to disease

the answer is b. osage.

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.