Answer the following question given this paragraph: Lipids are a diverse class of relatively nonpolar biomolecules that generally do not dissolve well in water. Common types of lipids include fatty acids, triglycerides, phospholipids, and steroids. Q: Fatty acids, triglycerides, phospholipids, and steroids are examples of what? A:
OPTIONS:
- tissues
- enzymes
- proteins
- lipids
lipids

Answer the following question given this paragraph: But ice ages also occurred many times in the past. An ice age is a period when temperatures are cooler than normal. This causes glaciers to spread to lower latitudes. Scientists think that ice ages occurred at least six times over the last billion years alone. How do scientists learn about Earth's past climates?. Q: What is the term for a period when temperatures are cooler than normal causing glaciers to spread to lower latitudes? A:
OPTIONS:
- cooling era
- cold age
- freezing point
- ice age

Answer: ice age

Question: Answer the following question given this paragraph: The Behavior of Electrons In the human body, atoms do not exist as independent entities. Rather, they are constantly reacting with other atoms to form and to break down more complex substances. To fully understand anatomy and physiology you must grasp how atoms participate in such reactions. The key is understanding the behavior of electrons. Although electrons do not follow rigid orbits a set distance away from the atom's nucleus, they do tend to stay within certain regions of space called electron shells. An electron shell is a layer of electrons that encircle the nucleus at a distinct energy level. The atoms of the elements found in the human body have from one to five electron shells, and all electron shells hold eight electrons except the first shell, which can only hold two. This configuration of electron shells is the same for all atoms. The precise number of shells depends on the number of electrons in the atom. Hydrogen and helium have just one and two electrons, respectively. If you take a look at the periodic table of the elements, you will notice that hydrogen and helium are placed alone on either sides of the top row; they are the only elements that have just one electron shell (Figure 2.7). A second shell is necessary to hold the electrons in all elements larger than hydrogen and helium. Lithium (Li), whose atomic number is 3, has three electrons. Two of these fill the first electron shell, and the third spills over into a second shell. The second electron shell can accommodate as many as eight electrons. Carbon, with its six electrons, entirely fills its first shell, and half-fills its second. With ten electrons, neon (Ne) entirely fills its two electron shells. Again, a look at the periodic table reveals that all of the elements in the second row, from lithium to neon, have just two electron shells. Atoms with more than ten electrons require more than two shells. These elements occupy the third and subsequent rows of the periodic table. Q: What is the layer of electrons that encircle the nucleus at a distinct energy level called? A:
OPTIONS:
- molecular shell
- vortex shell
- ions shell
- electron shell
Answer: electron shell

input with options: Answer the following question given this paragraph: Both the increase in pressure and the decrease in temperature cause the volume of the gas sample to decrease. Since both changes are relatively small, the volume does not decrease dramatically. Q: If a gas in a closed area experiences increases in pressure and decreases in temperatures, what other attribute of the gas will be affected? A:
OPTIONS:
- gravity
- velocity
- temperature
- volume
output: volume

Q: Answer the following question given this paragraph: Protein Structure. Primary protein structure is the sequence of amino acids in a single polypeptide. Secondary protein structure refers to internal shapes, such as alpha helices and beta pleated sheets, that a single polypeptide takes on due to bonds between atoms in different parts of the polypeptide. Tertiary protein structure is the overall three-dimensional shape of a protein consisting of one polypeptide. Quaternary protein structure is the shape of a protein consisting of two or more polypeptides. For a brief animation of protein structure, see www. stolaf. edu/people/giannini/flashanimat/proteins/protein%20structure. swf . Q: A sequence of amino acids in single polypeptide is the primary structure for what? A:

OPTIONS:
- lipids
- cells
- dna
- proteins

A: proteins

Answer the following question given this paragraph: Nutrients the body needs in relatively large amounts are called macronutrients . They include carbohydrates, proteins, lipids, and water. All macronutrients except water can be used by the body for energy. (The energy in food is measured in a unit called a Calorie . ) The exact amount of each macronutrient that an individual needs depends on many factors, including gender and age. Recommended daily intakes by teens of three macronutrients are shown in Table below . Based on your gender and age, how many grams of proteins should you eat each day?. Q: What are nutrients the body needs in relatively large amounts called? A:
OPTIONS:
- adulterants
- abundances
- vitamins
- macronutrients
macronutrients