Breaking apart large biomolecules by adding water is called

Hydrolysis

Explanation:

Hydrolysis is the process of using water "hydro-" to break "lyse-" apart macromolecules. Because most molecules in the body are covalent, which is stronger in water than ionic, there needs to be a specific reaction to break them down, not just dissolution.

For example, maltose can be broken down into two glucoses by this process.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.