1. The Native Americans had many established cultures and customs. Who brought the same to the United States

a big one is

to appoint and regulate officers of the land and naval forces,

which caused much controversy ending the articles

ecologists usually specialise in a particular area, such as freshwater, marine, terrestrial, fauna or flora and carry out a range of tasks relating to that area. when starting out, ecologists often conduct surveys to identify, record, and monitor species and their habitats.