Khan Academy
Khan Academy: Biology: Intro to Biology: Preparing to Study Biology
This article list some fundamental topics for students to review over before studying biology.
Khan Academy
Khan Academy: Biology: Intro to Biology: What Is Life?
This article explores exactly what is considered alive but reviewing over the characteristics of life.
Khan Academy
Khan Academy: Intro to Photosynthesis
Discussion of the conversion of light energy to chemical energy through the life-sustaining process of photosynthesis. Explores the reactions of photosynthesis, where they take place, and their ecological importance.
Khan Academy
Khan Academy: Intro to Viruses
Find out what a virus is, and learn about the structure of a virus and how it infects a cell.
Khan Academy
Khan Academy: Intro to Gene Expression (Central Dogma)
Learn how genes in DNA can provide instructions for proteins. Understand the central dogma of molecular biology: DNA, RNA, protein.
Khan Academy
Khan Academy: Intro to Biotechnology
An overview of what biotechnology is including DNA technology. Also explore ethical questions in biotechnology.
Khan Academy
Khan Academy: Biology: Controlled Experiments
An article that explores how scientist conduct controlled experiments to test hypotheses.
Khan Academy
Khan Academy: Introduction to Cellular Respiration and Redox
Introduction to redox in cellular respiration. Provides an overview of how cells break down fuels and looks at some of the electron transfer reactions that are key to this process.
CK-12 Foundation
Ck 12: Biology: Basics of Science Study Guide
This comprehensive study guide covers the key terms and basic concepts needed for an intro to science unit.
Savvas Learning
Pearson's the Biology Place: Cell Respiration
This excellent interactive website about cellular respiration provides an overview then goes into the details that can be so difficult to understand. The practice, review, and quiz pages should help solidify understanding.
Khan Academy
Khan Academy: Biology: The Scientific Method
Learn how you can test a hypothesis with the scientific method by reading this article.
Morning Earth
Morning Earth: All Lives Seek Balance: Introduction to Homeostasis
Scholars explore the Biology concept of homeostasis. The tutorial consists of definitions, examples, and pictures. Topics include homeostasis in organisms, how they work, and the internal environment.
Khan Academy
Khan Academy: Biology: Structure of a Cell: Introduction to Cells
Learn about cell theory in this article. [12:29]
Khan Academy
Khan Academy: Biology: Structure of a Cell: Introduction to Eukaryotic Cells
An article reviewing the structure of eukaryotic cells. Learn how the cells have a nucleus, organelles, and chromosomes.
Talk Origins Archive
Talk.origins: Introduction to Evolutionary Biology
An article giving a brief introduction to evolutionary biology. The article addresses misconceptions as well as the basics of the theory of evolution.
Indiana University
Is Classification Arbitrary or Not?
Students transition from classifying furniture to an understanding of classification of living organisms in this thorough lesson plan site.
University of Arizona
University of Arizona: Blood Types Tutorial
This site from the University of Arizona describes how blood type is passed on from parent to child. The tutorial covers the genetics of the ABO blood groups as well as Rh factor. There are even practice problems and blood type calculators!
National Science Foundation
National Science Foundation: Language and Linguistics
The language we use everyday reveals a great deal about who we are and where we come from. However, did you know that language is linked to psychology, biology, and other sciences? Explore the "science" of language: how the brain...
Khan Academy
Khan Academy: Chromosomes
This informative resource features an overview of genetic material: DNA, chromosomes, genomes, homologous chromosomes, sister chromatids, and haploid/diploid.
Khan Academy
Khan Academy: Ecology: What Is an Ecosystem
Learn what an ecosystem is, how energy and matter move through ecosystems, and what makes an ecosystem stable.
Khan Academy
Khan Academy: What Is Ecology?
A webpage giving an overview of ecology. Learn about the biotic and abiotic factors that make up an ecosystem as well as the different levels of ecology.