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
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This enzyme is responsible for breaking the backbone on the DNA double helix
A. supercoilase B. topoisomerase II C. nucleoidase D. transcriptase E. polymerase
Which of the following has flagella that wave back and forth?
A. Archaea B. Eukarya C. Bacteria
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?
Diphtheria is caused by a member of which of the following genera?
A. Mycobacterium B. Corynebacterium C. Nocardia D. Propionibacterium