🧍Biology

The cell is the smallest unit of life. How does it work? This question and more will be answered in these guides about what a cell is and why they're so important to life. You'll learn what organelles make up cells and how they work together to create complex organisms along with the difference between plant cells and animal cells, eukaryotes and prokaryotes, and how cell processes regulate the cell. Fiveable's free guides will take you step by step to learn this crucial content for your biology class.

Humans are complex creatures. Between all the systems in the human body, it takes years to master the anatomy. In biology, you'll learn what these systems are and how they work together at a high level to make humans live. The main systems are the respiratory system, immune system, cardiovascular system, skeletal and muscular systems, nervous system, digestive system, and reproductive system. These systems and more work together to make you the person you are! Follow Fiveable's free guides to learn how humans work and what makes us the way we are!