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Based on this excerpt, the primary purpose of
Jessica Metcalf's timeline is to eventually be able
to
A identify more types of organisms in nature.
B determine more precisely when a person died.
C
understand the role of decomposers in an ecosystem.
Metcalf is creating a timeline of decomposers.
The timeline starts at death, then tracks each wave
of microbes that live on a corpse over the next
several weeks. Eventually, investigators might be
able to take a sample of microbes from a body and
check it against the timeline. This could reveal how
long the body has been decomposing.
D
discover what caused a person's death.