Digital library
Textbooks, references and open learning resources.
External
Investigations in Molecular Cell Biology
Clare M. O’Connor · Boston College
The course introduces students to molecular cell biology within the context of a semester-long research project in functional genomics. In the Pathways over Time project, students study the evolutionary conservation of genes in methionine synthesis. Each chapter includes both theoretical background material as well as detailed experimental procedures. Chapters can be used alone or in combination, depending on the course.

External
Biology for Majors II (Lumen)
LibreTexts
In the contents: 04: Module 1- Introduction to Biology · 4.01: Why It Matters- Introduction to Biology · 4.11: Introduction to the Study of Biology

External
Fundamentals of Biology Laboratory Manual
Shawn McEachin and Polly Parks · El Camino College
This course is a survey of all living things: prokaryotes, protists, fungi plants, and animals. Basic principles of structure, function, and relationships of living organisms are discussed with special reference to humans.

External
Human Biology
Gabor Gyurkovics · Community College of Vermont
In the contents: 01: Introduction to Human Biology and the Scientific Method · 1.01: Case Study - Why Should You Study Human Biology

External
BIO 403: Microbiology (Neely)
LibreTexts
In the contents: 2.02: The Eukaryotes of Microbiology · 2.2.E: The Eukaryotes of Microbiology (Exercises) · 7.1.05: Cancer Immunobiology and Immunotherapy

External
Microbiology
Gary Kaiser · Community College of Baltimore County (Cantonsville)
In the contents: Unit 1: Introduction to Microbiology and Prokaryotic Cell Anatomy · 1: Fundamentals of Microbiology · 1.1: Introduction to Microbiology

External
Biology
CK-12 Foundation · LibreTexts
In the contents: 01: Introduction to Biology · 1.16: Principles of Biology · 02: Cell Biology

External
MB352 General Microbiology Laboratory 2021
Alice Lee · North Carolina State University
In the contents: 1.01: Safety Procedures for the Microbiology Laboratory
External
Environmental Biology
Matthew R. Fisher · Oregon Coast Community College
Biología Ambiental es un libro de texto gratuito y abierto que permite a los estudiantes desarrollar una comprensión matizada de los problemas ambientales más apremiantes de la actualidad. Este libro de texto abierto de nivel universitario cubre los temas ambientales más destacados desde una perspectiva biológica y ayuda a los estudiantes a comprender los fundamentos científicos de los temas ambientales para que puedan comprender mejor el mundo que los rodea y su impacto en él.

External
Crop Genetics
Suza and Lamkey · Iowa State University
This book provides an introduction to genetic concepts such as reproductive systems, recombination, mutation, segregation and linkage analysis, inbreeding, quantitative inheritance, fertility regulation, population genetics and polyploidy.

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BIOL 40C Lab Manual: Metabolism, Regulation, Defense, Excretion
Susmita Sengupta and Lakshmikanta Sengupta · De Anza College
This lab manual covers the endocrine, lymphatic, digestive, urinary, and reproductive systems, linking them to homeostasis and clinical concerns like endocrine disorders and infertility. Activities move from identification to deeper reasoning through visuals, retrieval practice, and collaborative work, connecting back to earlier systems and recurring themes like hormonal regulation and fluid balance, with glossaries throughout for consistent vocabulary.

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Forest Measurements: An Applied Approach
Joan DeYoung · Mt. Hood Community College
This is a forest measurements textbook written for field technicians. Silvicultural applications and illustrations are provided to demonstrate the relevance of the measurements. Special “technique tips” for each skill are intended to help increase data collection accuracy and confidence. These include how to avoid common pitfalls, effective short cuts, and essentials for recording field data correctly. The emphasis is on elementary skills; it is not intended to be a timber cruising guide.

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Introduction to Botany
Alexey Shipunov · Minot State University
This text is a re-structuring the “classical” course into a more logical sequence of themes with two main ideas: (1) put as much plant-related information as possible into an evolutionary context and (2) explain complicated problems with simple words and metaphors.

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Plant Anatomy and Physiology
Sean Bellairs · Charles Darwin University
This text was created to support teaching of an introductory unit on plant environmental physiology at Charles Darwin University. It makes use of various images of cells and tissues to introduce and illustrate the range of plant organelles, cells, tissues and organs.

External
Biotechnology: Basic Lab Techniques
Victor Pham · Irvine Valley College
LibreTexts

External
Genetics, Agriculture, and Biotechnology
Walter Suza and Donald Lee · University of Iowa
This textbook provides an introduction to plant genetics and biotechnology for the advancement of agriculture. A clear and structured introduction to the topic for learners new to the field of genetics, the book includes: an introduction to the life cycle of the cell, DNA and how it relates to genes and chromosomes, DNA analysis, recombinant DNA, biotechnology, and transmission genetics.

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Introduction to Environmental Science
Caralyn Zehnder, Kalina Manoylov, Samuel Mutiti, Christine Mutiti, Allison VandeVoort, & Donna Bennett · Georgia College and State University
This text uses the basic principles of biology and earth science as a context for understanding environmental policies and resource management practices. Our planet is facing unprecedented environmental challenges, from oil spills to global climate change. This texts explores the science behind these problems; preparing you to make an informed, invaluable contribution to Earth's future.

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Encyclopedia of Biological Methods
Katherine Mattaini · Tufts University
This project was born out of Dr. Mattaini’s experience developing her Biology of Cancer class in Spring 2021. In the syllabus, Dr. Mattaini reveals her two big-picture goals for the course: “First, I would like you to learn enough basics of cancer biology to be able to independently research and answer your future questions about cancer. Second, I will also support you as you strive to become a more nuanced reader of the primary literature, especially as it relates to cancer biology.”

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General Ecology
Tara Jo Holmberg · CT State Northwestern
In the contents: 0.1: Themes and Concepts of Biology · Chapter 23: Conservation Biology · 23.1: The Science of Conservation Biology

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Online Open Genetics
Todd Nickle and Isabelle Barrette-Ng · Mount Royal University & University of Calgary
In the contents: 11: Genomics and Systems Biology · 11.E: Genomics and Systems Biology (Exercises) · 11.S: Genomics and Systems Biology (Summary)