Offender profiling, also known as criminal profiling and psychological profiling, is an investigative technique used by law enforcement to help catch the perpetrator(s) of crimes, especially serious ones. It is based on what type of person the perpetrator is like through analysing the crime and crime scene. Image by Emilian Robert Vicol from Pixabay There … Continue reading What is Offender Profiling?
Viruses can harm us, one example being COVID-19. This is because viruses can not replicate or live by themselves. So they insert themselves into host cells (our cells) and use the host’s organelles and machinery to replicate. Once replicated, they burst out of the cell by cytolysis, killing the cell in the process. As a … Continue reading How viruses help kill bacteria.