Try to avoid changing answers on the answer form. If you do change an answer be sure to completely erase your old answer. If the grading machine detects two marked answers it will mark the question wrong, even if one of those marks is nearly erased. The answer forms will not be returned to you. Keep a copy of your answers on this question form.
Space is provided to the left of each question.
A key will be posted on the lab door immediately after the exam. This same number will be used for future exams including the final exam. Please keep track of it. A 'natural' system of classification works well because it reflects evolutionary relationships. Most sponges live in the ocean, but some species live in fresh water.