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.
Interphase is the phase of the cell cycle in which the cell spends the. majority of its time and performs the majority of its purposes including. preparation for cell division. In preparation for cell division, it increases its. size and makes a copy of its DNA. Interphase is also considered to be the. 'living' phase of the cell, in which the cell obtains nutrients, grows, reads its. DNA, and conducts other normal cell functions.