Answer the following question given this paragraph: Reactivity is the ability of matter to combine chemically with other substances. For example, iron is highly reactive with oxygen. When it combines with oxygen, it forms the reddish powder called rust (see Figure below ). Rust is not iron but an entirely different substance that consists of both iron and oxygen. Q: What term describes the ability of matter to combine chemically with other substances? A:

OPTIONS:
- oxidation
- Diffusion
- permeability
- reactivity

Answer: reactivity

Problem: OPTIONS:
- radiation
- replication
- natural selection
- mutation
Q: Answer the following question given this paragraph: Mutations are essential for evolution to occur because they increase genetic variation and the potential for individuals to differ. The majority of mutations are neutral in their effects on the organisms in which they occur. Beneficial mutations may become more common through natural selection. Harmful mutations may cause genetic disorders or cancer. Q: What phenomenon is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ? A:
Answer: mutation

Problem:OPTIONS:
- evolve
- revive
- evaporate
- decompose

Answer the following question given this paragraph: Q: Basidiomycetes do what to wood and other plant material? A:
****
A: decompose

Answer the following question given this paragraph: DNA. By contrast though, bacterial DNA is contained in a large, circular strand. This single chromosome is located in a region of the cell called the nucleoid . The nucleoid is not an organelle, but a region within the cytoplasm. Many bacteria also have additional small rings of DNA known as plasmids . Q: Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what? A:
OPTIONS:
- polypeptide
- amino acid
- nucleic acid
- the nucleoid
the nucleoid

Answer the following question given this paragraph: Lipids Lipids include a diverse group of compounds that are united by a common feature. Lipids are hydrophobic ("waterfearing"), or insoluble in water, because they are nonpolar molecules. This is because they are hydrocarbons that include only nonpolar carbon-carbon or carbon-hydrogen bonds. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of lipids called fats. Lipids also provide insulation from the environment for plants and animals (Figure 2.17). For example, they help keep aquatic birds and mammals dry because of their water-repelling nature. Lipids are also the building blocks of many hormones and are an important constituent of the plasma membrane. Lipids include fats, oils, waxes, phospholipids, and steroids. Q: In what form of lipids cells store energy for long-term use? A:
OPTIONS:
- meat
- nuts
- treasure
- fat

Answer: fat

input with options: Answer the following question given this paragraph: Atomic emission spectra are produced when excited electrons return to ground state. Q: Atomic emission spectra are produced when excited electrons return to what state? A:
OPTIONS:
- orbital state
- work state
- side state
- ground state
output:
ground state