What is a 3 dimensional interlinked microfilaments that form the framework of the cell and gives animal cells their shape?

 Anthropology is classified into four major classes namely, linguistics, archeaology,cultural and physical anthropology. Physical anthropology is the study of human variation, evolution and bio culture. it entails all aspects of human biology both in the past and the present. Changes in lifestyle, health and gene helps the physical anthropologists to understand the human biological variation.