I believe the answer is: Stimulus enchancement
Stimulus enhancement refers to an exposure toward a certain stimulus that make the observer aware on the relationship between the stimulus and the result. In the scenario above, the new dog is the observer, buddy chasing the lgiht is the stimulus, and Zoe follow in chasing the red light is the result.
Answer:
test the mutagenic effects of chemicals
Explanation:
Ames test is a biological investigation to evaluate the mutagenic potential of any chemical compounds. It is a widely used method which takes help of bacteria to test whether a chemical can bring mutations in DNA of the test organism.
It detects if a certain chemical can bring about a reversion mutation in the his- bacteria.