Answer - insight
The definition of insight is being able to see or understand something clearly, often sensed using intuition. An example of insight is what you can have about someone's life after reading a biography. An example of insight is understanding how a computer works.
Sensing activity on the tooths surface
The answer is: sexual development, growth, metabolism, and tissue function
Modern technology is good for communication. Some people have ah ard time with face to face talking when wanting to say something important they get nervous so now they can just send an email or a text.