Overall, life expectancy fell by one-tenth of a year, from 78.9 in 2014 to 78.8 in 2015, according to the latest data. The last time U.S. life expectancy at birth declined was in 1993, when it dropped from 75.6 to 75.4, according to World Bank data. The overall death rate rose 1.2 percent in 2015, its first uptick since 1999. More than 2.7 million people died, about 45 percent of them from heart disease or cancer.
The process by which new cells are made is called cell division. Cell division is occurring all the time. Around two trillion cell divisions occur in the average human body every day! Types of Cell Division. There are three main types of cell division: binary fission, mitosis, and meiosis.
A cell spends most of its life in the interphase stage where it is able to grow, create DNA and obtain nutrients in preparation for cell division. Interphase is not a part of meiosis or mitosis, but rather a stage that lets the cell perform required functions for reproduction. Continue Reading.