For Absolute dating they assign a numerical date to each rock layer studied
For relative dating they go Through geological dating and stratigraphy processes. Also, they use Uranium Dating.
The protein in the question can be referred to enzymes since its made of protein. The first statement is the answer
I believe that a scientific journal would be the best way to communicate towards his other colleague's. The reason why I wouldn't say the internet is, although the internet is much faster compared to others, the internet can differ in in information, making it unreliable.
Answer:
The petrous temporal bone
Explanation:
Jugular Foramen is a cavity or aperture which is formed at the junction of two bones of the skull. Jugular Foramen occurs at the junction of the occipital bone and petrous temporal bone. The petrous temporal bone has carotid foramen. The Jugular Foramen is located posterior to the carotid foramen but anterior to the occipital bone of the skull.