Topic 2.10 - Terrestrial microbes
What will be an ideal response?
1.Where are microbes found in ecosystems?
2.Which ecological processes are microbes responsible for in ecosystems?
3.What are some different relationships between microbial activity and nutrient flow in terrestrial ecosystems?
4.What are some relationships between microbial activity and ecosystem development?
--Microbes are found throughout terrestrial systems
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You are asked to participate in a clinical trial for a new drug that can activate telomerase. Which of the following is a likely risk of such a drug?
A. decreased capacity for tissue repair B. increased vulnerability to cancer C. premature aging D. decreased telomere length Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about telomeres and telomerase? Consider Possibilities · What other information is related to the question? Which information is most useful? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In Chapter 2, you learned about beneficial bacteria that live on our skin and lower the pH,
which in turn keeps other disease-causing bacteria in check. This relationship between beneficial bacteria and their human hosts is an example of __________.
a. coevolution b. adaptive radiation c. sexual selection d. mutation
When amino acid availability exceeds the needs of protein synthesis, ________
a. some amino acids are converted to urea and eventually eliminated in the urine b. the amino group can be removed and the carbon backbone metabolized for energy c. cells will make storage polypeptides in a way similar to glycogen formation d. all of the choices
Which of the following does not contribute to prokaryotic genetic variability?
a. mutation b. binary fission c. gene transfer by conjugation d. gene transfer by transduction e. gene transfer by transformation