Final answer:
No, not all archaeologists in the United States are also anthropologists.
Step-by-step explanation:
No, not all archaeologists in the United States are also anthropologists. While archaeology is a subfield of anthropology, not all archaeologists are trained in all four subfields of anthropology: cultural anthropology, biological anthropology, linguistic anthropology, and archaeology. Some archaeologists may solely focus on the study of material artifacts and ancient civilizations, while others may have a broader anthropological background.