As the collection of physical evidence begins
a. the police chief has primary responsibility of maintaining the chain of custody.
b. all observations should be recorded through photographs, sketches and notes.
c. the district attorney should be consulted for admissibility of physical evidence in court.
d. the medical examiner should oversee the collection of the evidence at the crime scene.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

geographic isolation

answer; ///animal spirits;