The knowledge obtained when scientists answer one question often generates other what?

Observing & Hypothesizing

Explanation:

The knowledge obtained when scientists answer one question often generates other questions or proves useful in solving other questions. Scientists gather information and answer questions collectively known as the scientific method.

it takes hundreds of years to become stable.

if you have another question lmk.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.