You might think this means macrophages are stronger than T-cells, but they arenât. Instead, T-cells are like a special forces unit that fights only one kind of virus that might be attacking your body. More than one kind of T-cell There are two types of T-cells in your body: Helper T-cells and Killer T-cells. Killer T-cells do the work of destroying the infected cells. The Helper T-cells coordinate the attack. Killer T-Cells and Antigens
Current high-definition televisions are situated in two common fixed arrangements for pixel resolution, the minimum of 720p or maximum of 1080p (in this case the âpâ does not stand for âpixel,â but weâll get to that in a moment). The 720 refers to 1280 x 720, or the horizontal and vertical numbers of pixels on a given screen. Likewise, the 1080 refers to a standard horizontal count of 1920 x 1080 vertical count of pixels in the grid.
If a Macâs display has over 215 pixels per inch (ppi), too small to be seen by the human eye at normal viewing distances, Apple will call it a âRetina displayâ and typically provide the pixel density. For reference, the 15â³ MacBook Pro is 220ppi, the 12â³ MacBook is 226ppi, and the 13â³ MacBook Pro is 227ppi.