1 Both gram negative and gram positive bacteria produce exotoxins while endotoxins are produced by gram negative bacteria. 2  Endotoxins cannot act as enzymes, but exotoxins can act as enzymes.  Endotoxins are a part of the outer membrane of cell wall, whereas exotoxins are extracellular component.
Amazon announced the Kindle Oasis on April 13, 2016, and it was released on April 27, 2016 worldwide. The Kindle Oasis is available in Wi-Fi ($290 ad-supported, $310 no ads) and Wi-Fi + 3G ($360 ad-supported, $380 no ads) models. The Oasis has a 6-inch, 300 ppi E Ink Carta HD display with ten LEDs.
Could Amazon relaunch its tablet line-up later in 2016? Despite the disaster that was the Fire Phone - which most of you will probably have forgotten about - Amazon isn't giving up on hardware just yet as it's new Kindle Oasis proves. Its hugely successful ereader and the reasonably successful Fire tablets are due for a refresh pretty soon.