No. It is a warning and an exclamatory phrase.
The glycerol heads in phospholipids are neutral and do not have a positive or negative charge. The charge on a phospholipid molecule is predominantly determined by the phosphate group located on the glycerol backbone.
Luck of the flip, but they do not always land heads up.
The meaning of "heads up" is to watch out. For example if i threw a baseball at your face, to give you a warning i would say "heads up". or if you are playing catch
Heads up, the meeting has been rescheduled to tomorrow morning.
The duration of Heads Up with Richard Herring is 3600.0 seconds.
Heads Up - 2011 is rated/received certificates of: UK:U
What is the chance of it landing on heads twice in a row?
National Heads-Up Poker Championship ended in 2011.
National Heads-Up Poker Championship was created in 2005.
Heads Up with Richard Herring ended on 2006-01-08.
Heads Up with Richard Herring was created on 2005-11-06.
In heads up poker, the player who is not dealing the cards is the big blind.