Q: Answer the following question given this paragraph: Valence electrons are the outer-shell electrons of an atom. Q: What are the outer-shell electrons of an atom called? A:

OPTIONS:
- outer electrons
- organism electrons
- helium electrons
- valence electrons

A: valence electrons

Q: Answer the following question given this paragraph: Q: What can occur during periods of heavy rain? A:

OPTIONS:
- volcanoes
- glaciers
- earthquakes
- floods

A: floods

Q: Answer the following question given this paragraph: Binary fission in various single-celled organisms (left). Cell division is a relatively simple process in many single-celled organisms. Eventually the parent cell will pinch apart to form two identical daughter cells. In multiple fission (right), a multinucleated cell can divide to form more than one daughter cell. Multiple fission is more often observed among protists. Q: Where is multiple fission more often observed? A:

OPTIONS:
- among multi-celled organisms
- among animals
- among vertebrates
- among protists

A: among protists

Q: Answer the following question given this paragraph: isolating the individual components, preservationists are better able to determine the condition of an object and those books and documents most in need of immediate protection. The simplest class of organic compounds is the hydrocarbons, which consist entirely of carbon and hydrogen. Petroleum and natural gas are complex, naturally occurring mixtures of many different hydrocarbons that furnish raw materials for the chemical industry. The four major classes of hydrocarbons are the alkanes, which contain only carbonhydrogen and carboncarbon single bonds; the alkenes, which contain at least one carboncarbon double bond; the alkynes, which contain at least one carboncarbon triple bond; and the aromatic hydrocarbons, which usually contain rings of six carbon atoms that can be drawn with alternating single and double bonds. Alkanes are also called saturated hydrocarbons, whereas hydrocarbons that contain multiple bonds (alkenes, alkynes, and aromatics) are unsaturated. Q: The simplest class of organic compounds is the what? A:

OPTIONS:
- particles
- Phenols
- gas
- hydrocarbons

A:
hydrocarbons