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.
What is the main function in the excretory system? The main function of the excretory system is to get rid of wastes  from the body. It is actually composed of many different structures  and organs in other systems of the boâ¦dy. The organs that contribute  are ones like the lungs, skin, liver, kidneys, colon, and bladder,  just to name a few.