Question

what is the next level of organization in living things after organ?
□ organ system
□ organism
□ cells
□ molecules
□ atoms
□ tissues

Explanation:

The levels of organization in living things, from simpler to more complex, are atoms, molecules, cells, tissues, organs, organ systems, and then organisms. After the organ level, the next level is organ system, as multiple organs work together to form an organ system.

Answer:

A. organ system