PreparED Study Materials
Notes
Study Guides
Videos
Biodiversity Threats: Spotlight on Habitat Alterations & Solutions
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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.
Mollusk Mantles: Secrets of Shell and Organ Protection
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Discover the essential role of the mantle in mollusks, the protective tissue responsible for shell secretion or organ protection. Explore how land snails, clams, and octopuses utilize their mantles for distinct purposes.
Caffeine's Impact on Alertness: Tapping into Fight-or-Flight Mechanism
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Explore the body's fight-or-flight response and its link to caffeine's effects. Learn how the interruption of cAMP phosphodiesterase leads to prolonged alertness and why caffeine can result in sleeplessness.
Action Potentials: Unveiling the Mystery of Unidirectional Transmissio
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Discover the intricacies of action potentials in the nervous system. Unpack five statements on why they move in one direction, spotlighting the role of the refractory period. Grasp the significance of voltage-gated channels and ion flow in neural communication.
Shared Genes: Why Humans & Prokaryotes Share 1000?
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Explore the fascinating intersection of human and prokaryotic genetics revealing that both contain about 1000 shared genes despite their complexity difference. The video explains how this common genetic heritage can be traced back to a universal ancestor covering the essential functions these genes perform like metabolism and DNA replication.
Microscopic Marvels: Understanding Compact and Spongy Bone Structures
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Uncover the microscopic intricacies of compact and spongy bone structures. Learn about osteons, trabeculae, and the vital role of osteocytes. Dive into the balance of strength and functionality bones provide to our body.