With Apologia’s Self-Paced Marine Biology science course, students will receive 1 year of access (from the date of purchase) to a self-directed, online homeschool curriculum. This course includes a digital version of Exploring Creation with Marine Biology , 2nd Edition; an audio narration of the textbook; video lessons and hands-on experiments; and automatically graded tests. You can try a free demo of Exploring Creation with Marine Biology , 2nd Edition, which features Module 1 as a test drive! The demo has no time limit and includes all the features found in the paid course. Apologia product: https://www.apologia.com/shop/apologia-self-paced-marine-biology-2nd-edition/