Some advantages of blended learning, particularly at a Kindergarten to grade 12 level of education, can be found under the general concept of educational technology. It is also one of the most effective ways for Personalized learning at scale.
The length of a human pregnancy can vary naturally by as much as five weeks. Credit: Â© Jessmine / Fotolia. The length of a human pregnancy can vary naturally by as much as five weeks, according to research published online August 7 in the journal Human Reproduction. Normally, women are given a date for the likely delivery of their baby that is calculated as 280 days after the onset of their last menstrual period.
A human egg is only viable for 12 to 24 hours, you can get pregnant anytime from about five days prior ovulation even occasionally two after, a total of seven long time, biology books have stated that woman born with finite number eggs the has short life after ovary during ovulation, it goes into fallopian tube where lives hours.