The tools of the earliest H. sapiens were __________
a. more complex and varied than those of H. erectus or Neandertals
b. smaller and more compact than typical Middle Stone Age tools
c. indistinguishable from those of earlier hominins
d. completely innovative
Correct Answer: a
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Big City Java is a local coffee bar. Using Excel, the manager of Big City Java estimates the weekly demand function for their grand mocha coffees to be Qd = 650 - (15.25 × P). The estimated regression equation suggests which of the following is true?
A) The Law of Demand does not hold for Big City Java's grand mochas. B) If a price of $10 is charged, the predicted weekly demand of grand mocha coffees is 639.75. C) If a price of $5 is charged, the predicted weekly demand of grand mocha coffees is 573.75. D) The horizontal intercept of the demand equation is 15.25.
The earliest australopith fossils come from:
a. North Africa. b. South Africa. c. Asia. d. Europe. e. East Africa.
What is meant by the statement, "natural selection is the one factor that can cause directional change in allele frequency relative to specific environmental factors"?
What will be an ideal response?
Which of the following is not a change that affects women who become a Chan monastic?
a. They devote themselves to their families unselfishly. b. They begin to refer to each other as “brother.” c. They reduce their attachment to worldly things, such as music. d. They eat sparsely and lose weight. e. They shave their heads.