Which action in the excerpt illustrates that Diane is
dedicated to her work?
She makes a mold of her own tongue.
She performs odd jobs around the lab.
She stands in front of the mirror.
She goes horseback riding with a friend.
Read the excerpt from "Bone Detective."
Diane stood in front of a minor and stuck out her tongue. It
looked like a rosy pink welcome mat to her delicate insides.
Her usual rubber mold formula was out of the question
too toxic. She wondered. What is safe to swallow, fast and
easy to apply, and hardens quickly into a firm mold?
One of her horse-riding pals, a veterinarian named Mary
Wright, had the alginate. Mary told Diane that
alginate was a pink gummy material used to make molds of
teeth. If it was safe for pets, it should be safe for a tiger.
And people too, Diane thought.
At her lab she mixed the alginate powder with water to form
a paste. Standing in front of a mirror, she scooped up a
biob and spread it on her tongue. She pressed it down with
her fingers to get out any air bubbles. Not bad, she
thought. Tastes just like spearmint. She decided to make
an extra-thick mold to make it easier to peel off. So she
Sa
Mark this and retum
Save and Est