Question

do now october 29 & 30, 2025
what are the levels of organization starting from simple to complex?
○ cells- tissues- organs- organ systems- organisms
○ organisms- organ systems- organs- tissues- cells
○ cells- organs- organisms- tissues- organ systems
○ tissue- cells- organs- organ systems- organisms

Explanation:

In biology, the hierarchical organization of life starts with cells (basic units). Cells form tissues (groups of similar cells). Tissues make organs (structures with specific functions). Organs work together as organ systems. Organ systems compose an organism.

Answer:

cells- tissues- organs- organ systems- organisms