PBIO 3300: Principles of Evolution

Learn about the composition of arteries focusing on those closer to the heart. Understand the role of endothelium smooth muscle fibers elastic fibers and collagen in these arterial structures. Discover why arteries near the heart have a higher percentage of elastic fibers to withstand pressure changes effectively.

Unpack the properties and significance of unsaturated fats in our diet. Explore the importance of double bonds in the fatty acid chains. Conclude with an insightful evaluation of statements about unsaturated fats.

Dive into the biochemistry of haemoglobin, a pivotal protein in red blood cells. We assess key statements about its structure and function, clarifying common misconceptions.

Discover the concept of adaptation in this video, where we evaluate four scenarios to determine which represents a heritable trait enhancing an organism's survival in its environment. Learn how the webbed feet of a duck exemplify a true adaptation, enabling it to thrive in its habitat.

Explore the crucial role of DNA polymerase in the DNA replication process. Understand its function in synthesizing new DNA strands. Dissect common misconceptions about this vital enzyme.