<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>
Answer:
Between crust and core hot material rises and cold material sinks.
Explanation:
The answer to number 3 is d.
Answer:
Hiya there!
Explanation:
The factors used to calculate the kinetic energy of an object are Mass and Velocity.
<em><u>Hope this helped!</u></em> :D