PreparED Study Materials
BI 240: Biology: Function and Development of Organisms
School: Portland State University
Number of Notes and Study Guides Available: 1
Study Guides
Videos
Decoding Hyperventilation: CO2 Levels, Effects & Managing Techniques
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the intricacies of hyperventilation, its impact on the body's CO2 levels, and the resulting respiratory alkalosis. Understand the triggers, physiological implications, and how controlled breathing and meditation can help manage this condition.
Allopatric Speciation: The Power of Geographic Isolation in Evolution
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Discover the intricacies of Allopatric Speciation, where geographical isolation plays a pivotal role. Examine the various factors influencing genetic divergence. Recognize how distinct environments foster unique evolutionary paths.
DNA Replication: The Semiconservative Explanation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the concept of semiconservative DNA replication, where each new DNA molecule retains one original strand. Understand the significance of this mechanism in ensuring accurate genetic information transfer across cell generations.
Understanding Neuron Signals: Role of Myelination & Fiber Diameter.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Grasp the fundamentals of how neurons transmit electrical signals through action potentials. Understand the crucial role of myelination and fiber diameter in efficient nerve impulse conduction. Dive into the comparisons of different nerve fiber types and their properties.
Eukaryotic DNA: Cohesin, Chromatids & Chromatin Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unravel the intricacies of a eukaryotic cell, its DNA structure, and the proteins that aid its function. Delve into the roles of cohesin, condensin, and histones, and discover the difference between chromatin, nucleosomes, and sister chromatids. Gain clarity on the pivotal structure ensuring successful cell division.
Adapting to Extreme Cold: The Science of Shivering & Homeostasis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
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.