_________ means judging information before
accepting it as fact.
a. Critical thinking
b. Law
c. Theory
d. Fact
e. Hypothesis
Answer: a
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Answer the following statements true (T) or false (F)
1. Researchers can readily extract DNA from one organism and merge that DNA into another organism, applying genetic engineering as a possible cure to cancer or muscular dystrophy and other diseases. The scientific method can test a hypothesis to determine if this approach is morally right or wrong.
2. In this experiment, if the scientists giving the placebo (low, medium, or high vaccine doses) did not know which dose they were administering, then this would be an example of a double-blind experiment.
3. A theory is an advanced hypothesis that has been proven to be true.
4.
These glucose and fructose molecules will bond to form a monosaccharide with the removal of water.
5. The property of water demonstrated by a water strider, as it remains on top of the water, is that water molecules are held together by ionic bonds.
Cultures of a bacterial species were incubated on the shelf of a refrigerator, out on a lab bench top, on the shelf of a 37°C incubator and on the shelf of a 50°C incubator. After incubation, there was no growth at 37°C and 50°C, slight growth out on the bench top and abundant growth at refrigeration. What term could be used for this species?
A. Psychrophile B. Mesophile C. Halophile D. Capnophile E. Anaerobe
Pure cultures are often obtained by isolating
A) streaks. B) broths. C) CFUs (colony forming units). D) inoculums. E) specimens.
Employ the principles of evolution discussed in this chapter to explain how the specific features and predatory behaviors of some primitive eukaryotes may have given them a selective advantage over others 1.5 billion years ago
What will be an ideal response?