Describe two different hypotheses of the origin of early cell structure

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.

What is the approximate time of death of the body temperature is 29.4 degrees celsius

Which would be the most useful source of evidence to support mcneill's contention?