The endomembrane system (endo- = “within”) is a group of membranes and organelles in eukaryotic cells that works together to modify, package, and transport lipids and proteins. It includes a variety of organelles, such as the nuclear envelope and lysosomes, which you may already know, and the endoplasmic reticulum and Golgi apparatus, which we will cover shortly.
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The human brain is estimated to have billions of these connections, according to some researches, about 100 billion.
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The answer is stress incontinence. The physical exercise as a result of the laughing or sneezing causes increased abnorminal pressure. Due to weak sphincters function and loss of black neck, the increased pressure easily forces urine out of the bladder. This type of incontinence is common in the elderly.
A diploid (2n) cell is a cell with both set of homologous chromosomes. Meiosis is a type of cell division which occurs in the gamete cells to produce four haploid (n) daughter cells. Haploid (n) cells are cells with one set of chromosomes. In this case a diploid cell in the male (spermatocyte) undergoes meiosis i and meiosis ii to produce four haploid (n) daughter cells .