Khan academy biology. .
Khan academy biology. Examine carrier proteins, including uniporters, symporters, and antiporters. Understand how variation within a species provides the raw material for adaptation. . Explore how natural selection drives evolution and shapes biodiversity. The biology archive contains legacy biology content, and is not being updated with new content. Understand diffusion, passive transport, and the role of electrochemical gradients. The course covers key biological molecules, the role of DNA, and the complexity of cells. Biology at Khan Academy explores life in all its forms, from humans to bacteria and how living things convert energy, grow, and reproduce. For our most up-to-date, mastery-enabled courses, check out High School Biology and AP Biology! Khan Academy Khan Academy Explore how facilitated diffusion moves molecules across membranes without energy input. From how natural selection drives change to the different ways species arise and go extinct, this unit will take you on an exciting journey through the history of life on Earth. Discover how active transport processes, such as the sodium-potassium pump, maintain ion balance and support essential cellular functions. ictdiy imry rpqg zyda pru dykq kvi mfnhq vfoppt zaolbbfx