What is Exocrine Glands

These are ductless glands and pour their secretions into the blood directly.

But the cons, of course, cannot be avoided. All readers with such a screen are black and white. Color Elink models are under development, and the display quality on them is very inferior to other technologies. Also, e-ink books are significantly more expensive than others. And, of course, due to the peculiarities of the screen on such readers it is impossible to watch videos, use the Internet and view photos, that is, of course, all this is possible, but with considerable inconvenience. For these purposes, there are tablet computers and readers with LCD or LCD displays.