A life spent totally on land was made possible by the evolution of:
A. lungs
B. a waterproof skin
C. the amniote egg
D. all of these
D. all of these
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If the cost to produce frozen chicken nuggets decreases at the same time as consumer tastes shift away from frozen chicken nuggets and the shift in demand is greater than the shift in supply, which of the following is true?
A) Both the equilibrium quantity and price will decrease. B) Both the equilibrium quantity and price will increase. C) The equilibrium quantity will decrease and the equilibrium price will increase. D) The equilibrium price will decrease and the equilibrium quantity will not change.
Most present-day foragers
A. live largely in isolation from food-producing neighbors and the influence of the state. B. live in marginal environments. C. adopted foraging after abandoning more advanced subsistence strategies. D. primarily fish for subsistence. E. are wholly dependent on welfare supplied by state-level societies.
When Spanish invaded Mexico and Guatemala, they adopted the local practice of using money. What item represented money in this area?
a. Coca leaves b. Cacao c. Feathers d. Salt e. Silver
The overwhelming consensus among climate scientists is that global warming is occurring and
a. it is a cyclical phenomenon. b. human activities are the cause. c. glaciation will correct it. d. it is sensationalized by the media. e. we should not worry.