Periods are the shedding of the uterine lineing when an egg is not fertilised.
Punctuated equilibrium is the model of evolution in which periods of rapid change occur interspersed with long periods of stability. This theory suggests that species evolve quickly in short bursts of rapid change followed by extended periods of little or no change.
No, periods do not occur after an egg is fertilized because fertilization of the egg leads to the development of the embryo, which implants in the uterus and eventually grows into a fetus. This process suppresses the shedding of the uterine lining that occurs during menstruation.
Girls get periods and they have it so that while ovulating (getting her period) and has sex she can become pregnant. Men don't have periods because they carry sperm to help get a woman pregnant. And you know that men can't have babys.
Punctuated equilibrium theory suggests that speciation occurs relatively rapidly, in geologically short periods of time, followed by long periods of stasis where little evolutionary change occurs. This contrasts with the gradualism theory, which proposes that evolution happens at a constant and slow rate over long periods of time.
Girls get periods to prepare their bodies to have a baby when they are older. The blood comes from inside the uterus, in which the wall of the uterus sheds a fluid containing blood that isn't needed. It is needed when you get pregnant. That's why you miss periods if you are pregnant.
They can occur on any day of the month.
during the menstrual cycle
yes
The warm periods that occur between ice ages are called interglacial periods. These are characterized by higher temperatures, melting of ice, and a relatively stable climate compared to the colder ice age periods.
all periods
No.
no
no
yes around 11 days after
Periods occur each month not each day Periods last a minimum of 5 days and can range to 7 days.
Warm interglacial periods occur approximately every 100,000 years, alternating with colder glacial periods. These cycles are driven by variations in Earth's orbital parameters known as Milankovitch cycles. The most recent warm interglacial period we are currently in is called the Holocene epoch.
Punctuated equilibrium is the model of evolution in which periods of rapid change occur interspersed with long periods of stability. This theory suggests that species evolve quickly in short bursts of rapid change followed by extended periods of little or no change.