Name the microbes that help production of the following products commercially.

A. Stain

B. Citric acid

C. Penicillin

D. Butyric acid

Differentiate between the genetic codes given below:

A. Unambiguous and Universal

B. Degenerate and Initiator

Mention one application for each of the following :

A. Passive immunization

B. Antihistamine

C. Colostrum

D. Cytokinin-barrier

List four benefits to human life by eliminating the use of CFCs.

Suggest two practices giving one example of each that help protect rare or threatened species.