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.
As of October 28, 2011, the series has been on The New York Times Best Seller list for children's book series for 223 weeks. The first book was adapted into a film titled Percy Jackson & the Olympians: The Lightning Thief in 2010, which was commercially successful, but received mixed reviews. An adaptation of the second book, titled Percy Jackson: Sea of Monsters, was released in 2013.