Three key facts we like from The Immune System and Foreign Invaders: 1  White blood cells known as leukocytes make up the immune system portion of the blood. 2  Leukocytes are divided into three main groups that help protect our bodies: granulocytes, lymphocytes, and monocytes.
The average price people in the U.S. pay for electricity is about 12 cents per kilowatt-hour. (Context: A typical U.S. household uses about 908 kWh a month of electricity.). But there's huge variation from state to state. Here's a map of residential electricity prices, according to the Energy Information Administration. People in Hawaii pay the most for electricity, about 33 cents per kWh. A Hawaiian household whose electricity use was around the national average would have a monthly electric bill over $300.
Seattle area households paid an average of 10.2 cents per kilowatt hour (kWh) of electricity in August 2015, up from the 9.6 cents per kWh in August 2014. The average cost of utility (piped) gas at $1.250 per therm in August was higher than the $1.187 per therm spent last year.(Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.).he average cost of utility (piped) gas at $1.250 per therm in August was higher than the $1.187 per therm spent last year. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.).