Listeria. Listeria is a bacterium that causes a serious infection called listeriosis. Around 300 deaths are caused by Listeria infection each year, according to estimates from a 2011 CDC report. Listeria bacteria are most commonly found in raw foods. Vegetables can be contaminated by soil and water carrying bacteria.
Human male reproductive system. The scrotum is the bag that holds the testicles (commonly called balls) in male mammals. It is made of skin and muscle and is found between the penis and anus. It is often covered in pubic hair and becomes tight when the male is aroused.
Testis are located in the scrotum, which is a sac-like structure, outside the abdominal cavity. They are located outside the cavity because the process of spermatogenesis (production of sperms) requires a temperature lower than the normal body temperature, which is found outside the cavity. hope this helps... They are located outside the abdominal cavity within a pouch called the scrotum.The testes produce sperms. But for this they require a temperature, which is 2 â 2.5Â°C lower than the temperature of the rest of the body. Therefore, they are protected inside the scrotum.