<span>Mucous membranes provide a mechanical barrier at body openings. They also line the respiratory, GI, urinary, and reproductive tracts. Mucous membranes secrete mucus, a slimy substance that traps pathogens. The membranes also have hair-like cilia.</span>
1L=0.264gal
=>3784L=999.627 Gal
At the end of this phase, it has now doubled everything and has 2x amount of material it needs and can now start mitosis
Radio waves have the longest wavelengths and the least energy.
