If we add the hydrogen peroxide with a graduated cylinder that had vinegar in it the sample could get contaminated with an acid or base oil or all of the above

The correct answer is acid.

Explanation:

The sample would get adulterated with acid. This is due to the fact that vinegar is an acid. Application of a graduated cylinder, which possesses vinegar in it will infect the sample with an acid and the chemical reaction that the hydrogen peroxide is considered to be used for will be influenced negatively as a consequence of this adulteration.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms