Ablood specimen is suspected to contain a photolabile drug. what step should toxicologists take as a precautionary measure?
a.
store the specimen in amber colored vials.
b.
add sodium citrate to the specimen.
c.
add potassium oxalate to the specimen.
d.
add heparin to the specimen.

class- forensic science

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which description provides the best objective summary of the article in the passage?