D, they are basically squished into a rock.
Hope this helps!
<em>Answer:</em>
<em>The correct answer is option "B"</em>
<em>Explanation:</em>
<em> Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract.</em>
What is barbules and pinnae?
Answer:
<h3>A sudden <u>and extreme change in temperature between inside and outside harms the body.</u>Other problems that can occur owing to sudden dip or rise in temperature are runny nose, asthma attacks, muscular pains, sinusitis, flu, cold, sore throat, severe pains and muscular aches.</h3>
<h3>Hope it helps youdear</h3>
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Type I cutaneous mechanoreceptors (aka) Merkel discs