BIOL 181: General Biology 1

Unlock the basics of the anatomical position, a crucial standard in medical and anatomical studies. This video clarifies the key differences among prone, supine, and standing positions and why they're not the anatomical position.

Explore the role of human placental lactogen (hPL) in this informative video. Learn how hPL prepares the breasts for lactation, debunking other hypotheses about its functions in nourishing the placenta or regulating the menstrual cycle. Discover the primary function of this remarkable placental hormone.

This data-driven video examines the difference in nucleotide replication rates between prokaryotes and eukaryotes, providing insights into the factors affecting their speed. It concludes that prokaryotes outpace eukaryotes, replicating nucleotides approximately ten times faster, and explores the contributing factors behind this difference.

In this video we explore the unique characteristics that set animals apart from other organisms. We evaluate options like gastrulation multicellularity sexual reproduction and flagellated sperm. Conclusively we identify gastrulation as a truly unique process in animal embryonic development.

Uncover the key roles of the cerebral cortex, from cognition and memory to emotional regulation. Compare its functions to those of the hypothalamus, particularly regarding circadian rhythms. Get the answer to what the cerebral cortex doesn't govern.

Explore the intricacies of nucleic acids, the macromolecules essential to life. Understand the roles of DNA and RNA, and delve into the structure of nucleotides—the fundamental building blocks of these crucial biomolecules.