Dear Franklin Park Zoo:

I understand you are looking for a new Administrative Assistant in your Animal Management Department.  I would like to be considered for this position.
While I majored in English and minored in Linguistics, I once took a zoology class in high school and really enjoyed it.  I also took Molecular Biology, Anatomy and Physiology, Chemistry, Forensics, Physics and then did an independent study of Anatomy and Physiology my senior year wherein I cataloged all the muscles in the human body and then constructed those that could feasibly be constructed out of clay and attached them to a foot high model skeleton.  For a good long while Jurassic Park was my favorite movie.  In short: I dig the sciences.  Not only that, but I retained that information.  Not all of it, but a lot of it.
BAM.

Know what that is?  Of course you do.  You're a zoo.  But the point is: so do I.  That's a platyhelminthes, baby.  Sure I had to check the spelling, but I've never forgotten that word.  How can you?  (Answer: you can forget it if you're a dumb lame person like all the other people applying to this job who aren't me.)  Platyhelminthes = flatworms. 
Here's a couple more taxonomically awesome words I'll throw out:
Nematode = round worms
Cephalopods = the cool animals AKA octopi, squid, nautilus, and cuttlefish
Chordata = the vertebrates
And I've got loads more (not really).  Know what else I've got loads more of?  Enthusiasm for this job.  So at your earliest convenience I will be ready to accept an offer. 
Thank you for your consideration.
Sincerely,
K. Bliss