Q.

Action potentials in skeletal muscle:

A. travel along muscle fibres at varying rates
B. have larger retratory periods compared to nerves
C. causes uptake of Ca++ into sacroplasmic reticulum
D. results in sustained contraction of muscle fibres
E. the haploid human genome is made up of 3 X 106 base pairs
Answer» B. have larger retratory periods compared to nerves
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