Answer:
There are three primary areas of the brain that control your sense of smell: The orbitofrontal cortex, located above and behind the eyes. The insula, which lies beneath the ears. The piriform cortex, located between the other two. Besides these three areas, there are smaller brain regions that also play a part in smell.
The quicker the regulation, the less energy and material wasted to unneeded products and pathways.
The answer for the first question is B. mucus sweat and tears, all of those are defenses that the body uses when attacked. Now for the second option is A the answer because the first filter that a virus or a desease must pass is indeed the skin. Hope is good for you
Answer:
Answer choice:Petroleum
Explanation:
Petroleum (crude oil and natural gas plant liquids): 28% Coal: 17.8%
The excretory system<span> is a </span>system<span> of organs that </span>work together<span> to rid the body of any waste. The </span>excretory systems<span> includes the lungs, ureter, urethra, liver, urinary bladder, kidneys and skin. ... The </span>system<span> controls the pH and osmotic concentration of the fluid, and it excretes urea, uric acid and ammonia.</span>