Its called an Ace, same as in Tennis and Bad mitten, games of similar setups.
Many veins and vessels make it look blue
<span>Within the composition of stars, there are a number of distinct zones with different regimes of behavior. In the case of the Sun, the temperature profile listed above equates to that of the radiation zone, where the temperature falls over 5 million degrees Celsius. Thus the answer is B. radiation zone.</span>
In the bones in the bone marrow
They are used for gps, weather, and tv stations, connects with cell towers, phone calls, satellites
Hope those help!