The teeth of grain- eating animals (such as horses)are usually broad and ridged.This makes the teeth suitable for grinding and chewing.Meat- eating animals (such as lions)have pointed teeth that are good for puncturing and ripping flesh.This illustrates

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The fact that grain-eating animals have broad and ridged teeth while meat-eating animals have pointed teeth is not only due to the connection between form and function but is also a result of natural selection. Through the process of natural selection, animals with traits that give them an advantage in survival and reproduction are more likely to pass on those traits to their offspring. In the case of teeth, animals that have teeth that are better suited for their diet are more likely to survive and reproduce successfully, passing on those advantageous tooth traits to their offspring. Therefore, the answer is D, a result of natural selection as well as the connection between form and function.

The Teeth of Grain- Eating Animals (Such as Horses)are Usually