\scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. what is one benefit of this procedure?

With the help of tissue culture, the chances of patients receiving ineffective or harmful medicines becomes negligible.

Explanation:

When a new drug is discovered, it has to go through various human and animal trials in order to test it for the following characteristics that are Absorption, Distribution, Metabolism, Excretion, and Toxicity, this is collectively known as ADMET.  

The application of tissue cultures in order to examine the drugs inhibits the occurrence of presenting humans to the unknown harmful influences of the drugs prior to the drugs to be considered safe for application.  

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !