Lyme disease is a bacterial illness that is spread by tick bites. Lyme disease can affect the skin, joints, heart, and the nervous system. Lyme disease occurs in phases, with the early phase beginning at the site of the tick bite with an expanding ring of redness.
When Do Not Disturb is on, a crescent moon, or half-moon, icon will appear in the status bar. There are two ways to turn Do Not Disturb on or off: 1  set a schedule.2  Swipe up from the bottom of the screen to open Control Center. 3  Tap the crescent moon.hen Do Not Disturb is on, a crescent moon, or half-moon, icon will appear in the status bar. There are two ways to turn Do Not Disturb on or off: 1  set a schedule.
Quick Answer. Moon phases refers to the appearance of the moon in the night sky and how much of its visible surface is illuminated. As the moon travels through its orbit, the percentage of its illuminated surface facing Earth waxes and wanes between full illumination and full darkness.