When you hear a sudden loud sound, you jump. name the stimulus and the response

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

In the practice of science, this type of reasoning is used to develop explanations.

Which molecule is called "molecule of hereditary?