How do animal behaviors, such as hibernation or migration, enhance their survival?

I would say it helps them adapt to their environment. For example, during hibernation when there is a shortage of food, animals have to learn how to adapt to their environment and prepare themselves for the winter. By doing so, it keeps them alive. The same concept can be applied to migration.

12 is probably the typical age for a first kiss but i think its to young.

It's potassium i believe