1. Human Biology

2. Bellringer What is the basic unit of structure and function in a living thing? Organize the following from smallest to largest: $1, 50¢, $5,000, and 1¢ Why do the cells in the following pictures look different?

3. Specialized Cells Perform Specific Jobs! Red blood cells: Bring oxygen, carbon dioxide and nutrients around the body Nerve cells: Send messages around the body Digestive cells: absorb nutrients from food Lung cells: Get oxygen in and carbon dioxide out Bone cells: supports body and protects organs Reproductive cells: produce offspring Muscle cells: move the body

8. Organ systems are groups of organs that do certain jobs in our body Digestive System!