Problem:OPTIONS:
- daily rhythms
- variable rhythms
- behavioral rhythms
- circadian rhythms

Answer the following question given this paragraph: Animals may eat and drink at certain times of day as well. Humans have daily cycles of behavior, too. Most people start to get sleepy after dark and have a hard time sleeping when it is light outside. Daily cycles of behavior are called circadian rhythms . Q: What is the term for daily cycles of behavior, like the sleep-wake cycle? A:
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A: circadian rhythms

Problem:OPTIONS:
- acceleration
- decrease
- increase
- rate

Answer the following question given this paragraph: It should be noted that just because a process is spontaneous does not mean that it occurs quickly. The rusting of iron is a spontaneous process that takes place over a long period of time. The combustion of gasoline in oxygen (also a spontaneous process) is extremely fast when provided with a spark, but gasoline can be stored in air for quite a while without spontaneously combusting. Thermodynamics predicts the direction in which a reaction will eventually proceed, but it does not tell us anything about the rate at which the reaction occurs. The rate of a reaction depends on many factors, including activation energy, temperature, concentration, and the presence or absence of a catalyst. Chemical kinetics focuses on the pathway between reactants and products, while thermodynamics considers only the difference between the initial and final states. Q: Thermodynamics do not give us any insight into what attribute of spontaneous processes? A:
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A: rate

Problem:OPTIONS:
- water
- sand
- tree
- land

Answer the following question given this paragraph: Centipedes and millipedes belong to the subphylum Myriapoda, which contains 13,000 species. They all live on land, which makes sense as all those legs are more adapted to a terrestrial lifestyle, as opposed to an aquatic lifestyle. Q: Not surprisingly, centipedes, millipedes and other members of the subphylum myriapoda are adapted to living on what? A:
****
A: land

Problem:OPTIONS:
- information
- manipulation
- suspension
- investigation

Answer the following question given this paragraph: Investigation is at the heart of science. It is how scientists do research. Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledge is discovered, science advances. Q: In science, what process produces evidence that helps answer questions and solve problems? A:
****
A:
investigation