dangerous it is to jump onto a moving freight car
The excerpt describes the care with which Enrique must take when jumping onto a moving freight car. When the narrator starts talking about the peril Enrique faces if he misses, the train is given human traits. The migrants further this when they say "The train ate him up." The train can't actually eat the boy, but it will seem as though it did because of the way the body will be torn up on the tracks.
Blocks a enzyme by going into the allosteric site.
From what i think it would be the total number of participants was tallied up by the volunteers.
