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Question
Excerpt 1
Most multicellular organisms contain stem cells that reinvigorate themselves through the process of mitotic cellular division. Stem cells in early embryos represent basic units of life in higher organisms, while adult stem cells in somatic tissues represent cellular stores capable of regenerating tissue and maintaining organ functions. Both are characterized by properties that permit accurate in vivo cell copying.
Excerpt 2
According to the National Institutes of Health, stem cells are general cells that have the potential to develop into any of the more than 200 kinds of cells in the human body. Basically, they turn into a cell that has a specific job to do.
For example, stem cells might become muscle cells that help rebuild damaged tissue. They might become red blood cells that help deliver oxygen to different tissues. Or they might become brain cells that help the nervous system function. No matter what type of cells need assistance, stem cells can come to the rescue and replenish the cells our bodies need.
The Genetics Learning Center at the University of Utah explains it like this: Stem cells are like actors waiting for a casting call. Just as an actor waits to find out his or her next role, stem cells wait for signals from the body that tell them what to become. Once they get those signals, they begin to change into specific cells with specific jobs to do.
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Related questions
Q:
As explained in your textbook, a group member to whom other members defer because of his or her rank or expertise is called a(n)
a. implied leader.
b. specific leader.
c. emergent leader.
d. designated leader.
e. appointed leader.
Q:
According to your textbook, a dyad is
a. a group of two people.
b. a group formed to solve a particular problem.
c. a group organized to present a symposium.
d. a group formed to plan a social event.
e. a group without a leader.
Q:
T F A symposium is essentially a conversation in front of an audience.
Q:
T F The ideal of small-group discussion is to reach a consensus decision on major issues facing the group.
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T F The ideal of small-group discussion is to reach a majority decision on major issues facing the group.
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T F Brainstorming for potential solutions requires that a small group wait until all potential solutions have been presented to begin evaluating them.
Q:
T F Brainstorming is especially useful when a problem-solving small group is trying to generate potential solutions.
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T F The maintenance needs of a small group include such matters as researching the discussion topic, keeping the group on track, and helping the group reach consensus.
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T F Helping group members get along with one another is an example of a task need in a small group.
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T F The procedural needs of a small group include such matters as whether members get along with one another and feel good about their roles in the group.
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T F The procedural needs of a small group include such matters as deciding when the group will meet, taking notes during the meeting, and summarizing the groups progress at the end of the meeting.
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T F To function effectively, a small group needs a specific leader.
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T F One of the defining traits of a small group is that its members assemble for a specific purpose.
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Define and explain each of the following methods of presenting the recommendations of a problem-solving small group:
a. oral report
b. symposium
c. panel discussion
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When one member of a small group has a personal goal that conflicts with the goals of the group as a whole, he or she is said to have a(n) _______________ agenda.
hidden
Q:
Sylvia was part of a small group attempting to deal with a wave of thefts in the campus dorms. Because the group was a problem-solving group, it would be unlikely to present its results in a. a convocation b. a panel discussion c. a seminar d. an open forum e. a symposium
Q:
Having reached consensus on a policy for increasing child safety in the homes of gun owners, Stefanos small group decided to have each member deliver a prepared speech on a different aspect of the groups work. According to your textbook, what method of presenting its recommendations did Stefanos group use?
a. an open forum
b. a convocation
c. a panel discussion
d. an oral report
e. a symposium
Q:
According to your textbook, a public presentation in which several people present prepared speeches on different aspects of the same topic is called a(n)
a. panel discussion.
b. oral report.
c. town hall meeting.
d. open forum.
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Q:
In a symposium, the participants
a. speak briefly, informally, and impromptu.
b. talk to one another loudly enough for the audience to hear.
c. deliver prepared speeches on different aspects of the topic.
d. frequently interrupt one another to make a point.
e. begin by responding to questions from the audience.
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T F Research indicates that evidence is usually more persuasive when it is stated in specific rather than general terms.
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The fallacy of _______________ assumes that something old is automatically better than something new.
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The _______________ fallacy assumes that taking a first step will lead to subsequent steps that cannot be prevented.
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T F Research has shown that speakers with high initial credibility need to use more evidence than speakers with low initial credibility.
Q:
T F Establishing common ground with an audience is especially important in the introduction of a persuasive speech.
Q:
The _______________ fallacy introduces an irrelevant issue to divert attention from the issue at hand.
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According to your textbook, _______________ reasoning seeks to establish the relationship between causes and effects.
Q:
T F Education and status are the most important factors affecting a speakers credibility.
Q:
According to your textbook, the following statement is an example of reasoning from _______________ .
In Rhode Island, three patients received brain surgery on the wrong side of their brain. A 52-year-old man in Florida who had to have his leg amputated ended up losing both legs because the surgeons mistakenly removed the healthy leg first. A 17-year-old died in a North Carolina hospital after receiving a heart-lung transplant from a donor with a different blood type. Cases like these illustrate how widespread medical malpractice has become.
specific instances
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When used in a persuasive speech, supporting materials such as examples, statistics, and testimony are referred to as _______________ .
Q:
_______________ credibility is the credibility of the speaker before she or he begins to speak. _______________ credibility is the credibility produced by everything the speaker says and does during the speech. _______________ credibility is the credibility of the speaker at the end of the speech.
Initial; Derived; Terminal