Answer to Question 1
There is an arbitrary selection of traits used to define races, an inability to describe intra-species variation through racial categories, and repeated independent evolution of so-called racial traits in a population with no genetic relationship.
Answer to Question 2
While ethnocentrism is the belief that our own way of life is superior, cultural relativism helps us to understand the logic other cultures; it increases our understanding of others and is a fundamental anthropological research tool.
Plant apical meristems and the primary tissues they produce.
Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
human leukocyte on mesh fibrin
The greatest bone mass is found around age 30 for both men and women, with the later decline being f
Human brain and skull
Cast of a Fossil Dunkleosteus, with a human to illustrate scale