There are three main subclasses of gastropods; the Prosobranchia (ocean snails), Opisthobranchia (sea slugs, sea butterflies and sea hares), and Pulmonata (land and freshwater snails and slugs). Each of the subclasses has evolved in their own way and members differ in their reproduction and life cycles within the subclasses. The gastropod folks are so large it really is impossible to spell out living cycle of each one individual species, but a majority of general rules do apply. The more evolved the species, the more complex their reproductive cycle in addition to their biology. Here we will look at the life span cycle of a gastropod through various examples and how they differ with regards to the type. Birth Control Patch works on the foundation of hormones. Basically it has two female hormones estrogen and progesterone, which prevents ovulation. It does not permit the eggs to developing from your ovaries. So, if there is no egg, what sperm will fertilize, knowning that prevents pregnancy. It also thickens the cervical mucus in order that the sperm cannot achieve the eggs. Menopause is always that transition in the woman?s life wherein she ceases to get reproductive. Literally, the word ?menopause? means cessation of menstruation. This period usually occurs among women around fifty. Menopause can be a natural phase of a woman?s physiological and reproductive process and is also to get anticipated at the center years. The woman?s fertility is exposed to a standstill at around these ages unless there is certainly decrease of ovaries due to illness or injury in the years prior to menopause. Most women consider menopause symptoms to get disturbing and in many cases distressing, not only the physical manifestations, but much more the emotional symptoms. In clinical causes, asoospermia and oligospermia can be caused by UTI, prostatitis, epididymtiis and vesiculitis. For the sufferers who suffering from antisperm antibody, the outcome of mycoplasma cultivation presents being optimistic, indicating that this form of antisperm antibody is connected alongside the infection of mycoplasma. The varices in the spermatic cord and hydrocele typically are associated with epididymitis and inflammation of spermatic duct, where furthermore, it designates a well known fact, which is, the diseases of low sperm count and dead sperm are closely from the infection of genital tract.