Referring to Figure 43-4, which of the following would not be involved in producing a receptor

potential?

a. depolarization

b. the opening of a voltage-gated channel

c. the activation of a G protein

d. Na+

e. ADP


E

Biology & Microbiology

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This enzyme is responsible for breaking the backbone on the DNA double helix

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Biology & Microbiology

Which of the following has flagella that wave back and forth?

A. Archaea B. Eukarya C. Bacteria

Biology & Microbiology

Herring gulls feed their chicks by regurgitating food for the chick in the nest. When a chick pecks at the red spot on the gull's beak, the parent regurgitates the food. Interestingly, the chicks will peck at any red spot, whether it is attached to a gull or not. Which features of this behavior are correctly labeled? (Check three.)  

_____  Fixed action pattern -- finding a healthy variety of food for the chick _____  Fixed action pattern -- pecking at the spot _____  Innate releasing mechanism -- neural circuit that induces pecking in response to a red spot _____  Innate releasing mechanism -- the red spot _____  Key stimulus -- the shape of the parent's beak _____  Key stimulus -- the regurgitated food _____  Key stimulus -- the red spot 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 feeding behaviors? What other information is related to the question?  Choose Answer:   Given what you now know, what information is most likely to produce the correct answer? Reflection 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

Diphtheria is caused by a member of which of the following genera?

A. Mycobacterium B. Corynebacterium C. Nocardia D. Propionibacterium

Biology & Microbiology