Dwarfism is an adaptation commonly found on islands when there __________.
A) is not enough food
B) are few predators
C) is a very low population density
D) are numerous competing species
B) are few predators
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In the United States, less than __________ of the population works in agriculture
a. 12% b. 3% c. 20% d. 1%
Passive bilingualism is when someone comprehends more than one language but is only able to express him/herself in one of them
a. True b. False
The school of diffusionism could not explain any of the following EXCEPT ________
a. why some traits diffused when others did not b. what conditions bring about diffusion of a cultural item c. what determines the rate of cultural diffusion d. how cultural contact leads to culture change e. where the primary centers of invention were located
Although there were great differences among colonies, all came to independence as relatively poor nations
Indicate whether the statement is true or false