Explain the difference between a theory and a hypothesis, and give an example of each
What will be an ideal response?
A hypothesis is a statement of fact yet to be proven, whereas a theory is based on much work and compelling evidence. Student examples will vary. Theories could include the Big Bang, evolution, atomic theory, relativity, etc.
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Biosynthesis of vitamin K (menaquinone) by ________ spp. inhabiting the ________ of humans is a potentially important mutualistic relationship for human health
A) Bifidobacterium / intestinal tract B) Bifidobacterium / stomach C) Escherichia / intestinal tract D) Escherichia / stomach
A person will typically experience the sensation of ________ when fever is starting to occur in the body.
A. pain B. chills C. heat D. sweating
Pasteurization is a technique in which heat is applied to liquids to kill potential agents of infection and spoilage, while at the same time attempting to retain the liquid's flavor and food value.
a. true b. false
What can gene chips be used for?
A. To examine patterns of protein expression under various environmental conditions B. To establish levels of genetic variation C. To determine the mass of a gene D. To identify the amount of a specific transcription factor in a cell.