this is for class) who is the second main character in the book maximum ride there isn't any categories for this so i put it under english since that's the closest)

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

what are the following?

line 5 is one of them idk the other one