Living Things Have Cells Practice Test

Cells are the basis for determining whether something is living. Two simplified microscope models are shown.

Sample A (Algae from a fish tank): many similar round units; each unit has a boundary; several show darker material inside.

Sample B (Green paint smear): green color spread smoothly with a few clumps; no consistent repeating units with boundaries.

Which conclusion about life is incorrect based on the observed models?

Cells are the basis for determining whether something is living. Two simplified microscope views are shown side by side.

Sample A (Bread mold): many repeating round units with clear boundaries; some units appear connected in chains.

Sample B (Dust from a shelf): mixed shapes and fragments; no consistent repeating units with clear boundaries.

Which sample provides evidence of being living based on the model you observed?