BIOL 101: Biological Principles I

Discover how cholesterol, a substance found in our body and certain foods, significantly impacts cell membrane fluidity. Learn its varying effects under different temperatures and in diverse cellular lipid compositions. Uncover its indispensable role in nerve signal transmission and cellular health.

Explore the integral role of white rami communicantes within the autonomic nervous system. This video clarifies their function, anatomical location, and the specific nerve fibers they contain, highlighting their importance in our body's fight-or-flight response.

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.

Explore the crucial concept of biodiversity and its significance. Learn about the various threats it faces, from pollution to habitat destruction. Emphasize the paramount threat: habitat alterations and their implications.