The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1.
Project Lead The Way (PLTW) is an American nonprofit organization that develops STEM curricula for use by US elementary, middle, and high schools.
Plakat (PK) The Plakat, or Plakad, is a short-tailed Betta, and is the most closely related to wild Betta splendens or traditional fighting Bettas. Plakats can often be mistaken for female Bettas to the untrained eye, however, males will display elongated ventral fins, a rounded caudal fin and a sharply pointed anal fin.