Answer
A connection between
form and function as a result of natural selection
Explanation:
Carnivorous animals have long ,sharp teeth adapted to ripping, tearing or cutting flesh.
While many also possess a few molars in the back of their mouths, and sharp incisors in
the front, the most important teeth for carnivores are their long, sharp canine teeth .
Due to the natural selection of carnivorous animals in eating flesh ,the form which is the structure of the teeth happens to be the canine which are used for tearing and that happens to be the major fuction.
From the second paragraph we could see the careful relationship between form, fuction and natural selection.