Imagine you are conducting a microbiological experiment that involves incubating cultures at a range of temperatures, including temperatures above 37°C. Which solidifying agent would be most appropriate to use, and why?

How does the formation of a bacterial colony illustrate the principle of clonal reproduction in bacteria?

Which term best describes the elevation of the bacterial colony shown in the image below?

The protozoan Plasmodium vivax is one of the Plasmodium species capable of causing malaria in humans, and is transmitted by the Anopheles mosquito.  The protozoan undergoes one of its developmental stages inside the Anopheles mosquito.  With regard to vector-borne transmission, this is an example of:

With regard to biological transmission by a vector, the infectious agent undergoes biological changes within the vector before being transmitted to a new host

Mechanical transmission by a vector is the passive transport of infectious agents on the outside of the vector's body to a susceptible host

Food-borne illness only occurs when pathogens of faecal origin enter food products, which are then consumed by susceptible individuals.

Food-borne transmission of infectious agents can occur when:

Food contaminated with pathogenic microorganisms is easily identifiable as it looks/smells 'off'.

Water is a important vehicle for the transmission of infectious agents.  What type of contaminating matter is an important source of these infectious agents?