What inference can be made about the skulls shown below?






What inference can be made about the skulls shown below?






All organisms on Earth had the same basic skull structure.




All organisms on Earth had the same number of teeth.


Over time, the jaws of these skulls decreased in size


Over time the brain of these organisms decreased in size.
What inference can be made about the skulls shown below?






What inference can be made about the skulls shown below?






All organisms on Earth had the same basic skull structure.




All organisms on Earth had the same number of teeth.


Over time, the jaws of these skulls decreased in size


Over time the brain of these organisms decreased in size.