Welcome to the Science Electronic Frontier Classroom of the 21st Century . You will be taking a test to determine the Haploid (n) or Diploid (2nd) number of chromosomes for various organisms. Some questions have images to help identify the haploid and diploid chromosome number. As "fill-in" questions appear in this test, please enter your answer(s) using all lower case letters. Unless the question has printed a set of instructions for you. I wish you Good Luck in learning the haploid and diploid number of chromosomes for various species.