Does where we live influence how our bodies express genetic traits? Explore variation in human skin color with an activity that incorporate video and hands-on learning. Individuals model the relationship between phenotypes and genotypes,...

You may not know if that zebrafish in your fish tank is a model citizen—but it is definitely a model organism! What can we learn about ourselves from a tiny zebrafish? Discover more about the polygenic trait of skin color through a...

Develop and strengthen reading comprehension strategies through this comprehensive teaching guide. Your learners will practice making text connections, inferences, predictions, and more using reading passages from the teen-appropriate...