I believe the answer in the blank should be protostar
Answer:
B is oldest because it is at the bottom which entails that it is the oldest.
Explanation:
B. Tundra - only biome with snow
This is copied what google:
“Paleoanthropology, also spelled Palaeoanthropology, also called Human Paleontology, interdisciplinary branch of anthropology concerned with the origins and development of early humans.”
I think it’s basically: a branch of anthropology, the study of the development and origins of early human beings.
