At one point in history, Texas was its own
O Planet
O City
O Nation
O Colony

colony

Explanation:

Native Americans have lived in Texas for thousands of years, but it did not become part of a country in the modern sense until Spanish explorers arrived in 1519. ... It became its own country, called the Republic of Texas, from 1836 until it agreed to join the United States in 1845.

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.

i really really really really really really dont know