Archaeologists:. a. never work with physical anthropology. b. are not interested in human behavior. c. study earlier human groups using artifacts and structures as their evidence. d. only examine complex civilizations. e. primarily recover valuable artifacts.

Option (C) study earlier human groups using artifacts and structures as their evidence.

Explanation: Archaeologist are interested in studying human history by examining artefacts, which range from prehistoric tools and buildings to animal bones and tiny organisms. They are interested in studying the origin, development, and behavior of human beings and their societies past and present. Archaeologists is the study of the ancient and recent human past through material remains. They might study the million year old fossils of our human ancestors.

the density would be a smaller number.

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.