Final answer:
The American Association of Physical Anthropologists (AAFA), recently renamed the American Association of Biological Anthropologists, has many physical anthropologists as members, but the exact number is unknown. Physical anthropologists study human adaptation, evolution, and variability, and can work in various settings, including academia, industries, museums, zoos, and forensic science.
Step-by-step explanation:
The American Association of Physical Anthropologists (AAFA) was established in 1930, and it was recently renamed the American Association of Biological Anthropologists. While there are more than 6500 number of physical anthropologists who are members of the AAFA, it is safe to assume that there are many physical anthropologists who are part of this professional organization. Physical anthropologists study the adaptation, variability, and evolution of human beings, as well as their living and fossil relatives, and they can work in a variety of settings, including academia and non-academic positions in industries, museums, zoos, and forensic science.