On which side of the pH scale do household cleaners such as bleach and ammonia belong?
A) Concentrated B) Basic C) Neutral D) Acidic
B
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The flap-like structure that prevents food from entering the larynx is called the
A) uvula. B) soft palate. C) epiglottis. D) thyroid cartilage. E) cricoid cartilage.
Which of these roles is NOT related to the reticular formation?
A) muscle tone and stretch reflexes B) pain modulation C) regulation of the menstrual cycle D) blood pressure regulation E) arousal and sleep
Which type of connective tissue stabilizes the positions of the vertebrae, cushions shocks, and permits expansion and contraction of organs?
A) elastic tissue B) dense irregular connective tissue C) dense regular connective tissue D) areolar tissue
The feature of the eye that secretes aqueous humor is the
A. ciliary body. B. conjunctiva. C. neural layer of the retina. D. cornea. E. pigmented layer of the retina.