AP® Biology

Scientists define extinction as a critical concept in biology because it shapes the diversity of … Read more

Speciation is a core concept in evolutionary biology and a crucial topic for AP® Biology … Read more

Phylogenies can look intimidating at first. However, understanding them is crucial for success in AP® … Read more

Antibiotics have been a cornerstone of modern medicine for decades. They serve as powerful tools … Read more

Introduction Common ancestry is a core concept in evolutionary biology. It describes how different species … Read more

Evolution offers a powerful explanation for the diversity of life on Earth. This topic is … Read more

Introduction Hardy Weinberg Equilibrium is a cornerstone concept in population genetics. It provides a theoretical … Read more

Population genetics is the study of how genetic variation changes over time within populations. By … Read more

Introduction Artificial selection—also known as selective breeding—has shaped our world for centuries, influencing everything from … Read more

Introduction “Survival of the Fittest” is a phrase often associated with Charles Darwin’s theory of … Read more