Updated 04/16/2025 Leukocytes, apart from eliminating bacteria and viruses, are also responsible for 100% of the substances eliminated by the liver and kidneys and can… Read More »What do leukocytes and macrophages do?

Updated 05/12/2024 To understand muscles, you have to know about H2O, water, and oxygen and hydrogen, gases in water. You also have to know what… Read More »Muscles.

Updated 15/04/2025 In this video, I show you some of my gray hair. The hair cells that form the white streak in the transparent video… Read More »Gray hair or white hair, melanin and melanocytes.