A period typically follows a 28 day cycle.
one week
It's another way of saying an infinitely long period of time. For ever.
One which sets out to study a group of subjects over a long period.
Premium period
About once every 28 days. However, there may be differences between one woman and another, and between one period and another for the same woman.
From the beginning of one period to the beginning of another period is anywhere from about 20 to 35 days; it varies from person to person.
Evolution
it depends from one girl to another. it may take place 10 days to 1 day before your period
instead of long period of time, you can use phrases like:a long terma long spella phaseyou can even use the word tenure if it suits the situation.
it does not have one
changing from one period to another
Mainly through gravity - the bodies attract one another. This means that gradually, over a long period of time, the gravitation of one planet can change the orbit of another planet.
About 4-10 days
No, you do not need to add an additional period at the end of a sentence that already ends with an abbreviation like Oct. The period from the abbreviation serves as the ending punctuation for the sentence.
It is hard to pin them down to a specific time period. They keep moving from one time period to another.
Approximately 58-63 days is the gestation period.
Photosynthetic producers