In what ways is the meaning of apprehensive similar to/different from frightened?

for the giver pls i have 2 min left if i don't finish i will get an f

Apprehensive means something closer to wary and cautious (not implying fear), while frightened implies that someone is tense, nervous and fearful.

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good luck I hope you don't get an F

when i skim a text i look for anything i'm trying to find, like keys or clues or i just want to see if it is interesting to me.

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