For taxable years beginning after December 31, 2015, the Form 1120 family of returns (except Form 1120-C, Form 1120S, and Form 1120-IC-DISC) is due on or before the 15th day of the fourth month following the close of the C corporationâs tax year, with one exception as follows.
Measles, mumps, and rubella are viral diseases. All can be very serious. Measles starts as a fever, cough, runny nose, conjunctivitis (pinkeye), and a red, pinpoint rash that starts on the face and spreads to the rest of the body. If the virus infects the lungs, it can cause pneumonia.
Key Difference â Pili vs. Flagella Pili and flagella are two types of extracellular filaments, which are attached to the cellular membrane of most of the prokaryotes including bacteria and archaea. Pili and flagella are different from one another. A key difference that can be identified between the two stems from the function of these two extracellular filaments. Pili are mainly involved in adhesion, biofilm formation, and DNA exchange. Flagella mainly support rapid swimming motility.