The answer is bacteria
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The buoy system was established to delimit navigable channels, signal obstacles to navigation and help the navigator.
It comprises six types of different signals that can be used in combination.
Side signs.
Danger signs isolated.
Signs of new dangers.
Signs of safe waters.
Special signs
Cardinal signs.
However, it is very important to know how to identify them by their shapes, colors and lights.
Red color:
SIDE SIGNS
SIGNS OF BABOR, ENTERING A CHANNEL
Lung diffusion is your ability to pass oxygen into the blood from the air sacs of the lungs, and pass carbon dioxide (CO2) back into the lungs from the blood.
