If after several generations most males have antlers with 20 points, this development will have been the result of:
A) disruptive selection. B) bottleneck effect.
C) directional selection. D) founder effect.
Answer: C
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The lipopolysaccharides are associated with the ____ membrane of Gram- ____ bacteria
a. outer; positive
b. outer; negative c. plasma; positive d. plasma; negative e. plasma; positive and negative
The outbreak of typhoid in connection with Typhoid Mary led to which epidemiogic findings?
a. the importance of tracking disease carries b. the use of antibiotics for treating typhoid c. the use of exercise for treating typhoid d. the importance of hand washing to prevent disease
Which of the following statements about lipids is incorrect?
A) They are short chains of polar hydrocarbons. B) They are used for energy storage. C) They are large chains of nonpolar hydrocarbons. D) They are primary component of cell membranes. E) They are hydrophobic and water insoluble.
A population that maintains several different phenotypes of the same trait displays ________
Fill in the blank(s) with correct word