During the process of phlebotomy, drawing a blood specimen from a patient, the action of cleaning the area on the skin prior to the insertion of the needle requires the application of a(n):
a. chemical sterilant.
b. bacteriostatic agent.
c. alcohol.
d. antiseptic.
D
Although alcohol is considered an antiseptic in many health care settings, the general term for application of an agent to minimize the level of potentially contaminating organisms on the skin is considered an antiseptic. A disinfectant is used on an inanimate surface.
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Use the following graph to answer the following question(s).
The amount of fat does not affect the frequency of the size of cells found in cookies.
Answer the following statement true (T) or false (F)
Some scientists predict that as atmospheric carbon dioxide levels increase, the pH of the oceans will drop, thus threatening coral and organisms within shells. What is the best explanation for this hypothesis?
A. Carbon dioxide combines with water to form a base. B. Carbon dioxide combines with water to form an acid. C. As the oceans warm, more water is evaporated, lowering the pH of the remaining water. D. As the pH of the ocean decreases, more carbon dioxide is released into the atmosphere. E. As the pH of the ocean increases, more carbon dioxide is released into the atmosphere.
How did Gregor Mendel's research affect the science of his time?
A) His research was not appreciated by the scientific community until after he died. B) His focus on pea plants showed that pea plants have very few heritable traits. C) His results could predict heritability in plants but not animals. D) His research included detailed studies on polygenic traits.
Based on what happened with tobacco and, more recently climate change, which of the following is key to scientific consensus?
What will be an ideal response?