Postexposure prophylaxis is available for all of the following diseases, EXCEPT:
A) HIV.
B) hepatitis C.
C) syphilis.
D) gonorrhea.
Answer: B) hepatitis C.
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If a cell was capable of bypassing metaphase and going directly from prometaphase to anaphase, what is the most likely consequence of this?
A. The resulting daughter cells would not have a nuclear envelope. B. The resulting daughter cells would have significantly different quantities of cytoplasmic materials. C. The resulting daughter cells would have different numbers of chromosomes. D. The resulting daughter cells would be completely normal. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about metaphase? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
All of the following statements concerning the evolutionary species concept are true EXCEPT
A. an evolutionary "family tree" is used to identify species based on a common ancestor. B. it relies on identification of certain morphological traits to distinguish one species from another. C. abrupt changes in traits are indicative of the evolution of a new species in the fossil record. D. it requires that the members of a species share a distinct evolutionary pathway.
Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. How many producers are there is this scenario?
What will be an ideal response?
The number of genes in the human genome is estimated to be:
A) 1 million. B) 3 to 6 million. C) 3 billion. D) 20,000 to 25,000.