A muscle twitch is what?
What will be an ideal response?
Answer: Minimum amount of contraction
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The "high-mobility" of HMG proteins refers to their:
A. rapid movement from DNA sequence to DNA sequence. B. rapid electrophoretic mobility in polyacrylamide gels. C. abundant occupancy in chromatin. D. structural role in chromatin remodeling.
Lyme disease is an example of a disease
A. that is due to a greater degree of interaction between humans and tick-carrying animals. B. that is due to a decline in vaccinations. C. that is due to a mutation in the human genome. D. that is due to climate change leading to a greater mosquito population.
Which respiratory disease is caused when bacterial enzymes destroy the alveolar walls and the surface area of the lungs declines?
a. Emphysema b. Tuberculosis c. Asthma d. Apnea e. Pneumonia
Otto Loewi performed an experiment in which he first electrically stimulated the vagus nerve connected to a frog heart. He then passed the fluid bathing this heart to a second chamber containing a second frog heart not connected to a nerve. What did Loewi observe?
A. The first heart showed a decrease in beat rate, but there was no change in the second heart. B. The first heart showed an increase in beat rate, but there was no change in the second heart. C. The first heart showed a decrease in beat rate and so did the second heart. D. There was no effect on the beating of either heart. E. The first heart showed an increase in beat rate and so did the second heart.