Using a HEPA filter in a vacuum or furnace is an example of which microbial control method?
A. Surfactant
B. Gases
C. Chemical agent
D. Dry control
Answer: D
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Given the locally unwound double strand above, in which direction does the RNA polymerase move while transcribing DNA?
A) ? along the template DNA strand B) ? along the template DNA strand C) ? along the nontemplate DNA strand D) ? along the nontemplate DNA strand E) ? along the double-stranded DNA
Based in the information provided, the best explanation for the low numbers of spiders and flies in plot 5 is:
A. centipedes are actively consuming flies and spiders. B. there were not enough spiders to catch and consume all the flies. C. there were not enough flies to support a large centipede population. D. centipedes prefer spiders to flies. Clarify Question 1. What is the key concept addressed by the question? 2. What type of thinking is required? 3. What key words does the question contain and what do they mean? Gather Content 1. What do you know about food webs?How does it relate to the question? Consider Possibilities 1. What other information is related to the question? 2. Which information is most useful? 3. Which food webs make sense?Both spiders and flies are decreased in number, while centipedes are increased in plot 5. Choose Answer 1. Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process 1. 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?
A neuron and a nerve differ in that
A. nerves are bundles of fibers and neurons are single cells. B. neurons carry impulses and nerves do not. C. neurons are found in the peripheral nervous system only. D. nerves are attached to neurons.
Which of the following statements about cells is true?
A) All cells have cell walls. B) All cells have internal structures that move. C) All cells are attached to other cells. D) All cells are motile.