The scorpion sting is described as one of the most painful stings. The pain is associated with the neurotoxins from the sting that cause the sodium channels to

A. remain open.
B. remain closed.
C. open and close repeatedly.
D. misfire.
E. None of the answer choices is correct.


A. remain open.

Biology & Microbiology

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Bananas are picked green, shipped to their destination, and then sprayed with an artificial plant hormone. Which plant

hormone would be used for this purpose?

a. auxin b. gibberellin c. ethylene d. cytokinin e. abscisic acid

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Which statement is true of the female gametophyte of pine?

a. It's a product of repeated cell divisions of the functional megaspore. b. It's haploid. c. It serves as the stored food to be used by the embryo sporophyte upon germination. d. All of the above are true.

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Which plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration?

A. C3 B. Arctic C. C4 D. Desert

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