BIOS 1000: Animal Diversity

Discover the complex world of sea urchin reproduction, focusing on the essential role the cortical reaction plays in egg fertilization. Uncover common myths surrounding this process and learn what actually happens at the cellular level. Gain insight into how the formation of a fertilization envelope is crucial for successful fertilization.

Explore how viruses replicate and the various ways in which new viruses emerge. Understand the importance of mutation, cross-species transmission, and the significance of wider spread in host species for disease control strategies.

Explore the essential roles of accessory digestive organs, including the liver, pancreas, gallbladder, and salivary glands. Understand their functions, from enzyme secretion to nutrient breakdown. Gain insights into the intricacies of the human digestive process.

Unravel the intricacies of mitosis by identifying each phase and their characteristics. Highlight the process that is not a part of mitosis, emphasizing the importance of DNA replication.

Discover what happens in your body after a hearty meal! Learn about the concept of 'distension' and how nerve cells act as messengers to your control center, orchestrating the digestive process.

Explore the intricate world of cells, from the simplicity of prokaryotes to the advanced complexity of eukaryotes. Dive into cell structures and their functions, revealing the evolutionary journey of cellular design. Understand key processes like mitosis, meiosis, and the cell cycle, and how they underpin life itself. This video offers a captivating look at the marvels of cellular evolution, providing clarity on their roles in sustaining and diversifying life on Earth.