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.
From Pollution you know smokes
Grasses are the producers. Gazelles, warthogs, and wildebeests are primary consumers. Lions and cheetahs would be the secondary consumers.
Answer:
C.
Explanation:
I believe it would be C.
The tree is just starting to get flowers, nut its already come out of the ground and so its not in the seed stage, and it does not have bark yet so it cant be an adult tree
<em />It's radiocarbon dating because in the previous question it says that she is trying to find the amount of carbon-14 and carbon-12 in the fossil
