BIOL 120: Introduction to Biology

Explore the world of Spirillum bacteria, their spiral shape, and their distinct features. Contrast them with Spirochetes, highlighting differences in flagella and structure. Understand key characteristics that set Spirillum apart from other bacteria.

Discover what sets muscle cells apart from nerve cells in the complex world of cellular biology. Our video zeroes in on gene expression explaining how it's the key difference between these two cell types. Equip yourself with the knowledge to better understand cellular function and diversity.

Learn about the role of Erythropoietin (EPO), a natural kidney hormone, in controlling red blood cell production and oxygen transport. Discover how athletes misuse synthetic EPO for performance enhancement, despite the associated health risks.

Discover the concept of negative feedback loops in biological systems, where balance is maintained by counteracting changes. Explore the four key components: Stimulus, Sensor, Control Center, and Effector, through examples like blood sugar regulation. Uncover how these loops play a crucial role in keeping our body systems in harmony.

Explore the structure of bones and the key role of the nutrient foramen a small but vital hole. This video will help you understand why this marking is essential for bone health. Discover the answer to what kind of bone marking the nutrient foramen forms

Discover the wonders of parthenogenesis a form of asexual reproduction in our latest educational video. Understand how an egg cell can develop into an embryo without fertilization. Learn the key differences between parthenogenesis and other forms of asexual reproduction like budding and sequential hermaphroditism.