In paragraph 56, Helga states "I am your Mutti, Eva" in order to

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.

the underlined phrase is an example of : understatment

the answer is luis.

  someone can be considered a dynamic person by being energitic and forceful, but other aspects of being dynamic is having a lot of ideas and enthusiasm. luis his little brother with his homework, and later he teaches his younger brother how to ride a bike without training wheels, which takes a lot of patience, dedication and involvement.