Answer:
The correct answer is option (D) "His- strain grows on an his- plate".
Explanation:
The Ames test is a procedure that allows to detect if a given compound can cause mutations on a tested organism by growing strains of bacteria that require histidine (His-) to growth, since they are not able to produce its own histidine. In the Ames test, the bacteria is exposed to a given compound and is grown in a medium with small amount of histidine (his- plate). If the His- strain grows on a his- plate, it means that the bacteria has mutated to synthesize its own histidine and it is considered as a positive result on a the Ames test.
The correct answer is (c) determining how to manage global resources for all humanity
The goal of the world resource simulation center is a very large platform to manage global resources in the form that it serves to all humanity. The team there compiles the inventory of resources, analyses and assess the resources to solve the current problem as well as anticipated problem. They take help of the emerging technology to solve the problems more precisely. The technology there helps to examine the in-depth problems associated with resources.
blue......................
Sensing, secretion, protection, transcellular transport, and selective absorbtion
