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Hi, I am looking for someone to write an article on comparative physiology of sheep, mice, and humans Paper must be at least 1250 words. Please, no plagiarized work! Humans and sheep do not have a vaginal plate prior to birth. In addition, the embryo in mice grows in approximately 33 to 34 days, compared to 145-152 days in sheep and nine months in humans. The ovaries of all three are paired, although they are spherical for mice and ovoid in humans (Parker, 2010: 9). Ovaries in mice are attached through the mesovarium to the dorsal body around the kidneys’ caudal poles, as well as being enclosed by the elastic bursa. The ovarian bursa in the mouse closes off the abdominal cavity from the peri-ovarian space, although there is a small opening that allows nerves and blood vessels to access the ovarian hilus (Hollen, 2011: p62). In humans, just as in sheep, the ovaries float within the pelvis and are attached to the pelvic sidewalls and uterus by associated ligaments. During sexual maturity, the ovary surface becomes nodular due to the development of corpus luteal and follicles during menstrual/estrus cycles in humans and mice.