1 Motor neurons (motoneurons) carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body. 2  Receptors sense the environment (chemicals, light, sound, touch) and encode this information into electrochemical messages that are transmitted by sensory neurons.
The all-time single-season record for the lowest ERA, according to www.mlb.com, the official website of Major League Baseball, is held by Dutch Leonard, who in 1914 had an earned run average of 0.96, pitching 224.2 innings with a win-loss record of 19-5.
A pitcher can throw a shutout one game and give up 5 earned runs in the first inning of the next game. A hitter can bat .350 one season and .250 the next; a pitcher can have a 1.50 earned run average one season and 5.00 the next. A team can win 100 games in a season and lose a World Series in 4 straight games.