To determine whether a bloodstain is of human or animal origin, the serologist will perform:

a. an analysis with hemastix strips.
b. a precipitin test.
c. ria.
d. the luminol test.

B. A precipitin test is the correct answer

Explanation:

To determine whether a bloodstain is of human or animal origin, the serologist will perform: A precipitin test.

The precipitin test is based on the interaction between antigen and antibody which results in the formation of antigen-antibody complexes and this visible precipitate antigen-antibody complexes is called precipitin.

Precipitin test is a serological test where antibody reacts with soluble antigen to produce a precipitate.

The precipitin test is used to distinguished whether the blood sample is from human or different sources.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

answer; individualist culture;