You are to relate 4 units to each other. How did one unit concept reappear in another unit 1. Water

2. Macromolecules
-Lipids
-Protein
-Carbohydrates
-Nucleic Acids
3.Cells

4. Organelles ( an overview organelle structure and function)
- Including the cell membrane structure and function
- Membrane of Various organelles

5. Photosynthesis and Cellular Respiration

6. The Cell Cycle and Mitosis

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called