Psychoactive drug use can be traced to prehistory. There is archaeological evidence of the use of psychoactive substances (mostly plants) dating back at least 10,000 years, and historical evidence of cultural use over the past 5,000 years.here are many ways in which psychoactive drugs can affect the brain. Each drug has a specific action on one or more neurotransmitter or neuroreceptor in the brain. Drugs that increase activity in particular neurotransmitter systems are called agonists.
Which of the following is NOT an example of malware? a. adware c. rootkits b. vaporware d. zombies ANS: B PTS: 1 REF: 23 OBJ: 7 32. Which of the following is the term for known specific patterns of viruses? a. virtual viruses c. virus signatures b. virus traces d. virus items ANS: C PTS: 1 REF: 23 OBJ: 7 33. Which of the following is NOT a strategy that supports green computing? a.
Viruses are classified according to their type of genetic material, their strategy of replication, and their structure. The International Committee on Nomenclature of Viruses (ICNV), established in 1966, devised a scheme to group viruses into families, subfamilies, genera, and species.iruses often damage or kill the cells that they infect, causing disease in infected organisms. A few viruses stimulate cells to grow uncontrollably and produce cancers. Although many infectious diseases, such as the common cold, are caused by viruses, there are no cures for these illnesses.