Question: When rats of either sex undergo gonadectomization, __________.
Answer Choices:
They follow random patterns of sexual development
Their sexual development remains unaffected
They both follow a traditionally female pattern of development
They both follow a traditionally male pattern of development
Answer: They both follow a traditionally female pattern of development
Question: Which of the following deactivates circulating estradiol in females?
Answer Choices:
progesterone
testosterone
aromatase
alpha fetoprotein
Answer: alpha fetoprotein
Question: Which of the following cell types would provide the most effective stem cell treatment?
Answer Choices:
Multipotent
Pluripotent
Totipotent
Answer: Totipotent
Question: Which of the following develops into the heart, blood, and muscle of a fetus?
Answer Choices:
ectoderm
endoderm
mesoderm
neural plate
Answer: mesoderm
Question: Which of the following is NOT a source of increased brain volume in developing children?
Answer Choices:
synaptogenesis
cortical thinning
myelination
dendritic branching
Answer: cortical thinning
Question: Which of the following areas experiences a small amount of new neuron growth after the point of birth?
Answer Choices:
The occipital lobe
The corpus callosum
The thalamus
The olfactory bulb
Answer: The olfactory bulb
Question: Which of the following is the last part of the brain to fully develop?
Answer Choices:
The prefrontal cortex
The visual cortex
The somatosensory cortex
The amygdala
Answer: The prefrontal cortex
Question: As shown in Exhibit 7-12, the firm’s short-run supply curve is the:
Answer Choices:
entire marginal revenue curve
rising part of marginal cost beginning at E
rising part of marginal cost beginning at F
entire marginal cost curve
Answer: rising part of marginal cost beginning at E
Question: In Exhibit 6-10, the marginal cost of increasing production from 2 to 3 cases of books is:
Answer Choices:
higher than the marginal cost of increasing production from 1 to 2 cases of books, so the marginal cost curve must be rising between 2 and 3 cases.
higher than the marginal cost of increasing production from 1 to 2 cases of books, so the average total cost must be rising between 2 and 3 cases.
higher than the marginal cost of increasing production from 1 to 2 cases of books, so the marginal cost curve must be rising between 2 and 3 cases.
lower than the marginal cost of increasing production from 1 to 2 cases of books, so the average total cost must be rising in between 2 and 3 cases.
lower than the marginal cost of increasing production from 1 to 2 cases of books, so the marginal cost must be greater than average total cost between 2 and 3 cases.
Answer: higher than the marginal cost of increasing production from 1 to 2 cases of books, so the marginal cost curve must be rising between 2 and 3 cases.
Question: The automobile, steel, and oil markets are all examples of:
Answer Choices:
oligopolies
monopolies
perfectly competitive markets
monopolistically competitive markets
Answer: oligopolies
Question: A monopolistic competitive firm is inefficient because the firm:
Answer Choices:
produces an output where average total cost is not minimum
earns positive economic profits in the long run
is not maximizing its profit
is producing at an output corresponding to the condition that marginal cost equals price
Answer: produces an output where average total cost is not minimum
Question: Increased production, but not increased inflation, will result in higher:
Answer Choices:
real GDP
nominal GDP
money GDP
current dollar GDP
Answer: real GDP
Question: Given the short-run average total cost curves in Exhibit 6-15, what level of output per week minimizes average total cost?
Answer Choices:
2,000 units
1,000 units
1,500 units
500 units
Answer: 1,000 units
Question: Suppose that a small business takes in monthly revenue of $100,000. Labor, rental energy, and other purchased input costs are $70,000. The owner/entrepreneur could earn $5,000 per month in another job, and the owner/entrepreneur could get a return of $5,000 each month if she sold her business and invested the net proceeds in a financial asset, such as a treasury bond. Which of the following correctly describes her monthly economic profit?
Answer Choices:
$20,000
$25,000
$80,000
$90,000
Answer: $20,000
Question: If pizza used to be produced in a perfectly competitive market, and now the pizza market has become a monopoly, we can expect:
Answer Choices:
less pizza to be sold at a higher price
less pizza to be sold at a lower price
more pizza to be sold at a higher price
more pizza to be sold at a lower price
Answer: less pizza to be sold at a higher price
Question: As shown in Exhibit 7-12, the price that will yield zero economic profit is:
Answer Choices:
OB
OA
OB
OD
OC
Answer: OC
Question: A monopolist always faces a demand curve that is:
Answer Choices:
the same as the entire market demand curve
unit elastic
perfectly inelastic
perfectly elastic
Answer: the same as the entire market demand curve
Question: In a given year, U.S. nominal GDP was $5,744 billion and the GDP chain price index is 93.6. Real GDP is:
Answer Choices:
$6,137 billion
$5,137 billion
$5,376 billion
$6,376 billion
$6,900 billion
Answer: $6,137 billion
Question: Assume costs are identical for the two firms in Exhibit 9-6. If both firms were allowed to form a cartel and agree on their prices, equilibrium would be established by:
Answer Choices:
Widget Co. charging the high price and Ajax Co. charging the high price
Widget Co. charging the low price and Ajax Co. charging the low price
Widget Co. charging the high price and Ajax Co. charging the low price
Widget Co. charging the low price and Ajax Co. charging the high price
Answer: Widget Co. charging the high price and Ajax Co. charging the high price