My Solution! What Do You Think?

var questions = [
  ["What is the name of the first of the three thoracic segments of an insect?",
  "prothorax"],
  ["What is the name of tongue-like structure that molluscs use to scrape up food?",
  "radula"],
  ["What is the fibrous protein that makes up many sponge frameworks?",
  "spongin"],
  ["What is the pincher-like appendage that some crustaceans and arachnids have?",
  "chela"],
  ["What is the name of the beak of a bivalve?",
  "umbo"]
];

var rightAnswer = "";
var wrongAnswer = "";

//Asking the questions from above and recording if their answers are coreect or not.

for(j = 0; j < questions.length; j++) {
  var answer = prompt(questions[j][0]);
  var questionNum = j + 1;
  if(answer.toLowerCase() === questions[j][1]) {
    rightAnswer += "<ol>" + questionNum + ".) " + questions[j][0] +
    "<ul>Your Answer = " + answer + "</ul>" + "</ol>";
  } else {
    wrongAnswer += "<ol>" + questionNum + ".) " + questions[j][0] +
    "<ul>Your Answer = " + answer + "</ul>" +
    "<ul>Correct Answer = " + questions[j][1] + "</ul>" + "</ol>";
  }
}

function printAnswers(message) {
  document.write(message);
}

printAnswers("<h2><b>Questions Answered Correctly</b></h2>" + "<list>" + rightAnswer + "</list>");
printAnswers("<h2><b>Questions Answered Incorrectly</b></h2>" + "<list>" + wrongAnswer + "</list>");