are the twitching movements of muscle fibers caused by spontaneous contractions of all muscle fibers in a motor unit that is caused by irritation and hyperexcitability of the cell body and its motor neuron. This is suggestive of ___ disease and can be assessed .

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.