The word evolution, as used in biology, literally means
a. natural selection.
b. genetic drift.
c. divergence.
d. genetic change.
e. mutation.
D
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A candy bar contains 108 calories per serving. There are 4 grams of carbohydrate, 5 grams of protein, and 8 grams of fat in a serving. How many of the calories come from fat?
A. 72 B. 16 C. 18 D. 20
Explanations for mass extinction include all of the following EXCEPT
a. collisions between the earth and other bodies in the solar system. b. continental movements. c. adaptive radiation of new predator species in many lineages. d. alterations in sea level. e. habitat destruction.
DNA strands are parallel, running in the same orientation.
a. true b. false
In the following determining function, Earningsi = ?0 + ?1Educationi + Ui, what might be a factor contained in Ui?
A. Proximity to a 4-year college, which is known to not impact earnings B. Heteroscedasticity C. Innate ability, which might be correlated with education and earnings D. Predictions of earnings