heteromyidae: small New World burrowing mouselike rodents with fur-lined cheek pouches and hind limbs and tail adapted to leaping; adapted to desert conditions: pocket mice; kangaroo mice; kangaroo rats
abstraction: a general concept formed by extracting common features from specific examples
coursework: work assigned to and done by a student during a course of study; usually it is evaluated as part of the student's grade in the course