A human lost at sea without fresh drinking water is effectively lost in an osmotic desert. Why is drinking salt water harmful?
What will be an ideal response?
Salt water is hypertonic in relation to cells of the body. This means that the water concentration in the cells is greater than that in salt water. The cells would lose their water to the salt water due to this difference in tonicity.
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A or an ________________ animal eats both plant and meat food sources
Fill in the blank(s) with correct word
Ovulation is induced by a peak in the secretion of
A. ovulin. B. inhibin. C. LH. D. progesterone. E. estrogen.
Which of the following is/are the most specific internal defense against disease?
a. phagocytes b. NK cells c. inflammation d. T cells
The group of organic compounds containing carbon, hydrogen, and oxygen in a near 1:2:1 ratio is defined as a
A) carbohydrate. B) lipid. C) protein. D) nucleic acid. E) cholesterol.