*Question*
Q: Any sample of matter that has the same physical and chemical properties throughout the sample is called what? Choices: - element - molecule - type - substance A:
**Answer**
substance

*Question*
Q: What does the body derive from the breakdown of the carbohydrate-containing foods and drinks we consume? Choices: - insulin - lipids - amino acids - glucose A:
**Answer**
glucose

*Question*
Q: Exchange occurs directly with the external environment in what type of organisms? Choices: - hematopoietic organisms - cell clusters - multicellular organisms - unicellular organisms A:
**Answer**
unicellular organisms

*Question*
Q: Eight of the hottest years on record have occurred since what year? Choices: - 2002 - 1997 - 1991 - 1998 A:
**Answer**
1998