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.
A comparison of the sizes of various chemical and biological structures, and the resolving power of
Human Skeleton
Types of Electrical Potentials in Biological Systems
The distribution of cones and rods over the human retina. The figure illustrates the number of cones ...
General location of the primary auditory cortex and areas of secondary auditory cortex. Most ...
Structures of the Human Eye