2. PART B: How does the phrase "sick in his heart" contribute to
the tone of the entire passage?

Saying someone is sick in their heart would indicate they are no good, that they are not only a bad person but do not care for much.

Explanation:

terrestrial level - terrene position

potentially - possible/likely

dangerous tasks - treacherous assignment

specifically - exactly/precisely

disabilities - impairment/ailment

to boost - push/lift/raise

artificial intelligence - robot/ ai/machine

enemies - terrorist/opponent/competitor

scientific endeavors - experimental intent

valuable - expensive/priceless

result - outcome/product

hope this !

~just a girl in love with shawn mendes

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.