Companion spaced-repetition flashcards collection linked to the essential concepts in this OpenStax book.


"iDoRecall is hands down the most powerful and easy-to-use retrieval practice tool on the market-which means it is a world leader in innovative online educational tools."

Barbara Oakley, Ph.D.

Creator of Coursera's
Learning How to Learn

Biology 2e

Complete flashcards collection for the essential concepts in this textbook
Cynthia Fuller, Ph.D.
Group Creator and maintainer:
Cynthia Fuller, Ph.D.
Associate Professor
Henderson State University

Master thousands of key concepts from this textbook for free in a fraction of the time with support from Dr. Fuller and fellow students

This group contains content from Biology 2e by OpenStax.  Included are scores of spaced-repetition flashcards, organized by chapter, linked to specific relevant locations in the textbook. We call these unique flashcards "Recalls."

We recommend that you read this fantastic free book to learn biology and then use iDoRecall's flashcards to remember what you've learned. When you practice memory retrieval, if you struggle to recall the answer, click the source link and the textbook will open at the precise relevant location so that you can refresh your memory in the context where you learned it. We invite you to join our dedicated Biology Facebook group.

This book is licensed by OpenStax under the Creative Commons CC-BY 4.0 license. Access the book for free at: