Please help! This is for a science project. How do I turn this sentence into my own words?

The ability to roar has an anatomical basis, often involving modifications to the larynx and hybrid bone and enlarged internal air spaces for low frequency acoustic resonace.​

A roar is anatomical and it involves changes to the larynx and hybrid bone. Also, enlarged internal air spaces are needed to get low frequency acoustic resonance.

Explanation:

Or, um, you can just cite

what's the question?

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.