In 100 words or more each with references and in text citations answer the 4 questions.
1. In England during the eighteenth-century, Edward Jenner first injected a child with a totally untested smallpox vaccine and then, after a time, injected that child with living smallpox virus.
Of course there would be public outrage to someone performing a similar experiment today. In fact, many of the biological experiments carried out over the years up through WWII might be at best called questionable by today's standards.
How do you think a scientist of today would test a potential new vaccine?
2. Explain factors that influence bacterial growth.
3. Identify the techniques and principles of staining.
4. Classify bacteria according to taxonomic criteria.