What is the process that helps milk lasts longer but does not kill all the microbes in it .

Which converts complex protein in the dead bodies of plants and animals into ammonia, nitrites and nitrates?

Name the species of bacteria which is used to manufacture the antibiotic "streptomycin"?

The process done, when a microbe is injected to prevent us from getting a disease

Which process is used to preserve fish, meat and vegetables?

The bacteria form a hard outer coating called ________  which protects them from unfavourable conditions.

The size of a bacteria is _________ .

Free from any living organism is called _________ .

Name two micro organisms which are used to make antibiotics

A natural preservative is