Salt isn't resistant to bacterial growth.
Psychologists use a systematic method in research in order to eliminate subjectivity and allow for consistency across studies. This is to ensure that data is tested and recorded in the most objective way possible as well as ensure that psychologists are defining and measuring psychological concepts and behaviors in the same way.
Secondary: prepares a student for immediate employment in many health careers or for additional education after graduation.
post-secondary: is after high school, including training in a vocational-technical school, community college or university.
I believe it is metaphor, but i am not a 100% sure
