Which form of transmission is typically characterized by low virulence?
A) horizontal transmission
B) vertical transmission
C) indirect transmission
D) direct transmission
B
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A new antibiotic has been developed that inhibits the activity of an enzyme by competitive inhibition. What effect will this have on the activation energy of the enzyme-catalyzed reaction?
A. The activation energy required for the reaction in the presence of the antibiotic would be greater than the activation energy required in the absence of the antibiotic B. The activation energy required for the reaction in the presence of the antibiotic would be less than the activation energy required in the absence of the antibiotic C. The activation energy required for the reaction in the presence of the antibiotic will be the same as the activation energy required in the absence of the antibiotic Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about enzymes and activation energy? What factors influence activation energy? What other information is related to the question? Choose Answer Do you have all necessary information to analyze how the antibiotic might influence activation energy? 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?
Your city is considering a proposal to build a new algae-based biofuel plant. What benefits would this have over traditional fossil fuels? (Check all that apply.)
_____ The kelp fronds would provide habitat for endangered sea otters. _____ It contributes less carbon to the atmosphere overall. _____ It is a renewable resource. _____ Biofuel doesn’t need to be burned to provide energy. _____ The system could be paired with wastewater treatment. _____ The algae can be filtered from the water and used for fuel without refinement.
While gazing into an aquarium, you observe bubbles coming from an aquatic plant. What are the bubbles and where are they coming from?
What will be an ideal response?
Which one of the following terms is sometimes called "cell eating"?
A. pinocytosis B. phagocytosis C. exocytosis D. plasmolysis