These bacteria exist in many different parts of the body, and their presence usually does not cause any problems for the host body. The following is a list of the main sites for bacteria that consitute the normal flora. 1  The skin, especially the moist areas, such as the groin and between the toes.2  The respiratory tract, particularly the nose. 3  Urinary tract. 4  The digestive tract, i.e. the mouth, the terminal ileum and the colon.hese bacteria exist in many different parts of the body, and their presence usually does not cause any problems for the host body. The following is a list of the main sites for bacteria that consitute the normal flora. 1  The skin, especially the moist areas, such as the groin and between the toes.
Sulfur hexafluoride (SF6) is an inert gas which is six times heavier than the air we breathe, and helium is six times lighter, so sulfur hexafluoride has the opposite effect as helium in being able to make your voice deeper.
Most attractive singers have a bright, speech-like quality in their voices. We don't have any trouble understanding the words they are singing. Their sound reaches out and grabs us. Teachers draw that out of singers by talking about projection, or singing forward, etc. But the voices that really melt us also have a quality of depth to them. There is something that makes us feel like the sound is coming from the bottom of their souls. The brightness in their voices speaks out to us, while the depth is drawing us in.