Which form of transmission is typically characterized by low virulence?

A) horizontal transmission
B) vertical transmission
C) indirect transmission
D) direct transmission


B

Biology & Microbiology

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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?

Biology & Microbiology

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.

Biology & Microbiology

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?

Biology & Microbiology

Which one of the following terms is sometimes called "cell eating"?

A. pinocytosis B. phagocytosis C. exocytosis D. plasmolysis

Biology & Microbiology