Observe the background stars in the Galaxies tab. Are the background images accurate, showing actual stars and actual arrangements of stars, or are included to just give you a sense of other stars and galaxies in the background?

As time passes, the stars rise in the east just like the sun. Despite the annoying light pollution, you can barely make out part of the Milky Way, right of center. these stars move, by holding up your hands to the real sky,not the photo.

Explanation:

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation: