ACTIVITY 2. FILL ME UP! DIRECTIONS: Fill in the missing spaces in the table below. Write the description for each of the following biological levels and specify whether they are from least (1) level to greatest (8) (smallest to biggest). Biological Level Picture Description Label from least to greatest (1-8) 1. Population 2. Cell ook 3. Organism 4. Ecosystem 5. Biosphere 6. Organ 7. Organ system 8. Tissue​