Anorexia and bulimia ________
A) occur when the body does not receive enough vitamin C
B) occur when there is a protein-deficient diet
C) occur mainly in affluent countries where thinness is idealized
D) occur when a person does not obtain all the essential amino acids
C
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All of the following are reasons why some scientists believe that the term "prokaryote" is a somewhat artificial designation and should be discarded except
A. Some bacteria have 80S ribosomes. B. Some bacteria have their genetic material enclosed within a membrane. C. Some bacteria have internal membranous structures. D. Many bacterial have cytoskeletal elements.
Which is a characteristic of malignant cells?
a. abnormal plasma membrane and cytoplasm; abnormal cell division b. normal plasma membrane and cytoplasm; abnormal cell division c. abnormal plasma membrane, normal cytoplasm; normal cell division d. normal plasma membrane, abnormal cytoplasm; abnormal cell division e. normal plasma membrane and cytoplasm; normal cell division
A rotating body will continue in a state of uniform angular motion unless acted upon by an external torque.
The cell-cell interactions mediated by the selectins, integrins, and most members of the Ig superfamily are _______ interactions in which the cytoskeletons of adjacent cells are not linked to one another.
a. nonspecific b. physiologically unimportant c. stable d. transient