Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment.
It will be good for up to six months, in the vacuum seal, if stored in the refrigerator. If frozen in the vacuum seal, it can last for about 1 year. Once the sample is removed from the vacuum seal, it should not remain at room temperature for more than 18 hours. It will keep in the refrigerator, unsealed, for 30 days.
How long does marijuana stay in your urine if you smoked everyday for years? It will stay for 30 days. If you use water and Cranberry juice these will help remove it from your system faster, but it would still be wise to wait for the full 30 days befor â¦ e you take a drug test.