Refer to the figure below. Which of the following could have caused the shift in the demand curve?
A) a decrease in the expected future price of Good Z
B) an increase in income if Good Z is an inferior good
C) a decrease in the price of Good Z
D) an effective marketing campaign that changes preferences towards Good Z
D) an effective marketing campaign that changes preferences towards Good Z
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Which of the following statements about mutations is correct?
A. Mutations occur when needed to allow individuals to survive environmental changes such as shifts in the climate or the onslaught of a new disease. B. Mutations are always beneficial, making the organism better adapted. C. Mutations are very important from an evolutionary perspective because they introduce variation (new alleles) into the gene pool. D. Mutations are goal-directed, nonrandom changes in the DNA of an organism.
What is plate tectonics? How does plate tectonics affect the evolution of life?
What will be an ideal response?
Homologies that appeared most recently and are therefore shared by a relatively small group of closely related taxa are called:
A. autapomorphic features B. shared derived features C. shared ancestral features D. shared archetypical features
Cross-cultural studies indicate that
A. women generally are less restricted than men are with respect to premarital and extramarital sex. B. in most societies, women tend to be the primary child caregivers. C. men contribute much more to subsistence than women do. D. men never contribute to child care. E. a gender-based division of labor is very uncommon.