*Question*
Q: Any sample of matter that has the same physical and chemical properties throughout the sample is called what? Read this paragraph and choose the correct option from the provided answers: Elements and Compounds Any sample of matter that has the same physical and chemical properties throughout the sample is called a substance. There are two types of substances. A substance that cannot be broken down into chemically simpler components is an element. Aluminum, which is used in soda cans, is an element. A substance that can be broken down into chemically simpler components (because it has more than one element) is acompound (Figure 1.2 "The General Steps of the Scientific Method"). Water is a compound composed of the elements hydrogen and oxygen. Today, there are about 118 elements in the known universe. In contrast, scientists have identified tens of millions of different compounds to date. 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? Read this paragraph and choose the correct option from the provided answers: Regulation of Blood Glucose Levels by Insulin and Glucagon Glucose is required for cellular respiration and is the preferred fuel for all body cells. The body derives glucose from the breakdown of the carbohydrate-containing foods and drinks we consume. Glucose not immediately taken up by cells for fuel can be stored by the liver and muscles as glycogen, or converted to triglycerides and stored in the adipose tissue. Hormones regulate both the storage and the utilization of glucose as required. Receptors located in the pancreas sense blood glucose levels, and subsequently the pancreatic cells secrete glucagon or insulin to maintain normal levels. Choices: - insulin - lipids - amino acids - glucose A:
**Answer**
glucose

*Question*
Q: Exchange occurs directly with the external environment in what type of organisms? Read this paragraph and choose the correct option from the provided answers: 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? Read this paragraph and choose the correct option from the provided answers: Since the mid 1800s, Earth has warmed up quickly. Look at Figure below . The 14 hottest years on record have all occurred since 1900. Eight of them have occurred since 1998! This is what is usually meant by global warming . Choices: - 2002 - 1997 - 1991 - 1998 A:
**Answer**
1998