The expression or comment "Brain Freeze" means that the roof of your mouth is getting so cold that its affecting some of the nerves in your brain making it feel like a brain freeze.
300 Identified and confirmed with the exception of 200 that still need to be evaluated.
Frequency describes the number of waves that pass a fixed place in a given amount of time. So if the time it takes for a wave to pass is is 1/2 second, the frequency is 2 per second. If it takes 1/100 of an hour, the frequency is 100 per hour.
They are considered complex because they are ever changing. Something is constantly happening in the cell, whether it be protein creations, Mitosis, or Meosis, or even just the regular transportation of proteins throughout the cell.
