Which one of the following types of stretching isn’t recommended for most people, but instead for some athletes who need to prepare muscles for sustained activity?
a. ballistic
b. dynamic
c. static
d. pnf
and b is

Ab+cd-> ad+bc is what kind of reaction

9. withdrawal occurs when alcohol is removed from the system after the brain a. adapted to the continued presence of alcohol b. become physically saturated with alcohol c. become impervious to the effects of alcohol d. begun to treat alcohol as a poison

Which action occurs in the third stage of cell division a. the nuclear material of a cell is copied exactly b. the nuclear membrane disappears c. the cell forms two nuclei or d. the nuclear material separates, with half moving to wither side of the cell