"Periods"
The untold story of every girl

Girls endure this once they hit puberty. The majority of females hit puberty at age 12 1/2 or 13. Some can be as early as 8 or as late as 16. It happens on average every 28 days. Most females suffer from uterine cramps, nausea, and a wide spectrum of symptoms, including sheading of the uterine wall. This leads to menstrual bleeding.This eventually leads to pregnancy, when the female is ready. It’s the bridge between childhood and womanhood.

The correct answer is b

The open ocean begins at the low-tide mark and extends to the end of the continental shelf

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.