The field of inquiry that studies human culture and evolutionary aspects of human biology; includes cultural anthropology, archeaology, linguistics, and physical, or biological anthropology.

physical, or biological anthropology.

Explanation:

When there is a need to study human kind   through the X-ray of  relationships between human biology, its cultural diversity, and  evolution ,the aspect anthropology for this is Biological anthropology.

Therefore biological anthropology is concerned about how the interaction between the cultural diversity and biological process results in the  adaptations of mankind to different  environments.The influence of these on growth, behaviours, existence.

The primary focus of biological anthropologists is to study in details the concept of  ,mechanism of  variation,  adaptation.and how these lead to evolution and origin of mankind.

Sequel to this ,most evidences for this concept are obtained from the study of fossil materials,study of other related primates to man, and components of functional biology and genetics.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added