BIOL 120: Organismal Biology

This videos teaches the mechanisms behind waste elimination in earthworms and mammals. Learn how metanephridia in earthworms and nephrons in mammalian kidneys work differently to perform crucial functions. Clear up common misconceptions and deepen your understanding of these biological systems.

Explore the similarities and differences between the circulatory systems of amphibians and humans. Understand the distinctions in heart chambers, blood pressure, and where these two species align in their circulatory features.

In this video, we explore virus structure, specifically focusing on glycoproteins that extend from the virus's surface. Four statements related to virus structure are examined for accuracy, including the presence of a viral membrane, the composition of capsomeres, the genetic material within viruses, and the role of glycoproteins in virus attachment to host cells. The video highlights the importance of glycoproteins in facilitating virus attachment to host cells, ultimately marking the initiatio

Explore the fascinating world of vertebrates and tunicates in this video answer. Learn about their shared anatomical features including notochords and dorsal hollow nerve cords that reveal their closely linked evolutionary history

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.

Understand the anatomical significance and position of the lumbar region within the spinal structure. This video explains how the lumbar region which constitutes the lower back interacts with other areas like the popliteal and umbilical regions. Gain a clear perspective on its role in supporting body weight and its location relative to other spinal sections