Cell Size and Scale, an elegant and deceptively simple interactive from the University of Utah's Genetic Science Learning Center, enables you to compare the sizes of various really small things. The interactive is available free on the Internet and works on desktop computers, smart phones, and tablets.
Symptoms of severe anxiety evident in this case include; confusion, sweating, withdrawal, rapid speech, and a perceptual field that is reduced greatly and distorted. The perceptual field is heightened in mild anxiety while in moderate anxiety, the ability to think clearly is hampered but learning and problem solving can still take place. Additionally in panic, communication is unintelligible or there is an inability to speak.
The frontal bone can also be known as the forehead
This answer to this question is true