Which of the following provide a mechanism for the transport of ions and polar molecules through a membrane?
A) active transport
B) specific channels
C) both a and b
D) neither a nor b
C
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Which type of biome is most susceptible to desertification?
A. grassland B. tundra C. tropical forest D. temperate forest
How many electrons are there in the third shell of sodium, Na (atomic number 11)?
A. none B. one C. two D. three
) By assimilating local elites and selected individuals into the norms of global capitalist and corporate culture, former colonies like Kenya still find themselves under the domination of the core in a process known as
A) Neocolonialism. B) Totalitarianism. C) Authoritarianism. D) Orientalism. E) Sectionalism.
To determine your specific impacts on the environment, you can ________
A) measure the volume and type of all the wastes you contribute to the municipal waste stream B) measure local air pollution and its impacts on your health C) determine your current water pollution impact D) calculate your ecological footprint E) calculate the biodiversity of your local community