Which statement is true?
A) Hormones travel via specific pathways to specific cells, while electrical signals travel through the blood to all areas of the body.
B) Effects of hormones last for brief periods of time, while effects of electrical signals last for long periods of time.
C) It takes longer for hormones to be released into the bloodstream and be taken to target cells than it does for electrical signals to be transmitted.
D) Hormones have a direct connection with target cells, while electrical signals do not.
Answer: C
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In individuals with cystic fibrosis:a
the mucus enhances the action of the cilia that line the bronchi. b. the mucus prevents the growth of dangerous bacteria in the respiratory system. c. the mucus in the respiratory system is thinner than in unaffected individuals. d. abnormal mucous secretions occur throughout the body systems. e. abnormal mucous secretions inhibit infections by bacteria.
Mechanoreceptors respond to:
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T or F? The stiffness of a material can be determined by calculating the slope of the plastic portion of the stress-strain curve.
What will be an ideal response?