BIOL 3110: Evolution

Discover the mechanics of voltage-gated Na+ channels and their role in neuron activity. This video breaks down key neuronal terms like resting potential and threshold to explain precisely when these channels open. You'll come away understanding that voltage-gated Na+ channels open at the threshold state initiating an action potential.

Unravel the mysteries of food chain lengths by analyzing various factors. We spotlight the 10% rule in ecology, emphasizing how energy transfer inefficiencies mold ecosystem structures and functions.

Explore stromatolites, the oldest indicators of life on Earth formed by microbial actions. Understand their presence in shallow marine environments and their connection to early eukaryotic life.

Discover the body's innate ability to adapt to extreme cold conditions. Learn how the brain orchestrates warming responses like shivering. Grasp the concept of homeostasis in maintaining internal stability.

Uncover the intricacies of adaptive radiation, the rapid diversification of species into new ecological niches. Understand factors that drive this phenomenon and how genetic drift stands as an exception. Learn the role of evolutionary innovations and interactions in species divergence.

Primary succession is the process of converting barren, lifeless rock into a flourishing terrestrial community. This ecological transformation begins with pioneering species and lays the foundation for complex ecosystems.