Putin's rule by fear. Russian President Vladimir Putin listens during a meeting in the Novo-Ogaryovo residence, outside Moscow, Russia, Monday, March 2, 2015. Russian President Vladimir Putin listens during a meeting in the Novo-Ogaryovo residence, outside Moscow, Russia, Monday, March 2, 2015. One can't help but fear Vladimir Putin. Russian President Vladimir Putin wants the public to believe he doesn't benefit from the death of Boris Nemtsov, and some of the slain politician's anti-Kremlin allies seem inclined to agree.
Here are the three main parts of the excretory system and what they do:   The skin-it's responsible for producing sweat, which helps regulate the salt concentration in â¦ the body. When you sweat, the salt helps evaporate the water and, in turn, cools off the body.
Human Excretory System. The human excretory system functions to remove waste from the human body. This system consists of specialized structures and capillary networks that assist in the excretory process. The human excretory system includes the kidney and its functional unit, the nephron.