A generation is the time from the birth of a person, to the birth of his or her child. This can be anything from about 15-100 years.
Roughly 104.
There were ten generations between Adam and Noah. This rounds out to about 1100 years. It should be noted that the lifespans and fertility periods of these individuals were incredibly long. Adam was 130 years old when he fathered his first son and Noah fathered his first child at 500.
Figure on one every 25 years (average as family spacing changes with culture) which gives you four per century.
19 years, two months
19.07 generations
107.14 years
300
400
A generation is anywhere between 20 and 30 years. 15 generations would be up to 300 years
a bitter, continuous hostility, esp. between two families, clans, etc., often lasting for many years or generations.
The war lasted 50 years - two generations. There were obviously many leaders on both sides. Which period did you have in mind?
No. Adaptions usually take many generations to develop.
The true length of one generation is variable, as it is the time from the birth of one person to the birth of that person's child. As a rule of thumb, 25 years has often been used as an average number, but with many in the western nations having fewer children later in life, some are beginning to use bigger numbers for modern generations. For generations after the middle of the 20th century, some have proposed using 33 years. If a generation is 25 years, then 18 generations is 450 years. If a generation is 33 years, then 18 generations is 594 years.
There are two (2) generations in a nuclear family.
A generation is the time from the birth of a person, to the birth of his or her child. This can be anything from about 15-100 years.
fertilization and meiosis