Women had served in the war as nurses before world war 2
The most difficult challenges faced by the plymouth and jamestown settlers were not starving to death, since they were unfamiliar with the territory and farming practices needed for the land, and dealing with hostile Native Americans, since many natives viewed them (correctly) as being a threat.
I believe the term refers to architectural styles which draw inspiration and influence from forms seen in nature. Or, architecture that is built to blend seamlessly into natural settings like cliffsides or forested areas.