The molecule here is a(n) is most likely to be at room temperature a. unsaturated fat/ solid b. unsaturated fat/ liquid c. saturated fat/ soild b. saturated fat/ liquid

If i could see the molecule it would be a bit easier to confirm

Unsaturated Fats are liquid at room temperature

Saturated Fats are solid at room temperature

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.