Stranded on an island, you have two sources of water to drink: salty ocean water and contaminated fresh water. Explain your choice of drinking water and indicate why your selection is the best choice
What will be an ideal response?
The contaminated fresh water is the better choice to drink, because this water is hypotonic to your cells. Your cells will become rehydrated and bloat with the fluid when you drink. The salty ocean water is hypertonic to your cells and will cause your cells to dehydrate and shrivel as water leaves the cell.
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During pregnancy stroke volume can increase by
a) 10% b) 20% c) 30% d) 40% e) 50%
Anatomy & Physiology of Phonation
A patient experiences a fall, in which she lands on her side and hits her head. In the weeks that follow, she begins to feel very fatigued. The ________may have been damaged, resulting in ________.
A. anterior pituitary gland; decreased estrogen levels B. adrenal medulla; increased cortisol secretion C. anterior pituitary gland; decreased thyroid hormone D. posterior pituitary gland; increased water retention
Which pH represents a solution that has the highest concentration of hydroxide ions?
A) pH 10 B) pH 14 C) pH 1 D) pH 7