*Question*
Q: Vitamins are organic compounds that are essential in very small amounts for the maintenance of normal what? Choices: - respiration - pigments - calcium - metabolism A:
**Answer**
metabolism

*Question*
Q: What is calculated by subtracting the smallest value from the largest value? Choices: - the sample - the density - the median - the range A:
**Answer**
the range

*Question*
Q: The largest phylum in the animal kingdom, arthropod, is primarily comprised of what? Choices: - reptiles - mammals - amphibians - insects A:
**Answer**
insects

*Question*
Q: What kind of rays can travel thousands of meters through air and can penetrate and damage cells deep inside the body? Choices: - x-rays - cosmic rays - plasma rays - gamma rays A:
**Answer**
gamma rays