Deer destroy gardens by feeding on plant leaves, stems and roots. Fortunately, catnip, chives, dill, garlic, lavender, onion, oregano, rosemary, sage, spearmint and thyme keep deer away from your garden, lawn and shrubbery. While people find the smell of these herbs pleasant, deer dislike their odor and give areas planted with them a wide berth.
From RationalWiki. An experimental control, often referred to as a control group, is a population or set of objects that is statistically similar to the set being tested, on which no changes are implemented. In psychology and biology, the control group is very important, since results are often statistical rather than concrete. For instance, in testing a drug for a malady, some percentage of the test subjects will heal with no intervention (or heal at some rate in a third group, people getting an existing remedy).
3 Structural gene clusters are coordinately controlled. 1  An operon is a unit of bacterial gene expression and regulation, including structural genes and control elements in DNA recognized by regulator gene product(s).acterial structural genes are often organized into clusters that include genes coding for proteins whose functions are related.