🦠 Prokaryotes (bacteria) were the first forms of life on Earth, existing for billions of years before plants and animals appeared. ⏳
✨ Every living organism falls into one of two groups:
✔️ prokaryotes
✔️ eukaryotes
🧍‍♂️ Humans are eukaryotes because we have a complex cell structure! 🤩
❗ Cellular structure determines which group an organism belongs to! 🆒
🤔❓ How did creatures like us form? Most biologists are convinced that eukaryotes emerged when one cell swallowed another one nearly two billion years ago. 💡