The uterine lining of the female's uterine cycle is shed during the menstrual phase. Menstrual cycle is a reoccurring cycle which begins at menarche and ends at menopause. During menstrual cycle, the endometrial lining prepares for pregnancy.
30 chest compressions to 2 rescue breaths
<span>several extreme environments on Earth, buried DEEP, living in hot, dry desert sand.. ETC</span>
The amount of time that the 2 species have been evolving apart??
