Humans can prevent erosion by practing conseraviton

The lungs are the bags that hold air as it is inhaled oxygen gas that is in the air moved into the blood-and the heart pumps to move this oxygenated blood to cells in the body that need energy

Answer im thinking prostate;

~they act different around each other (shy,clumsy,friendlier)~their eyes dilate when looking at each other/ more eye contact towards each other ~ they lean their body toward you~gently touching each other~jealous when one is with another person~they try to copy youhope this

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