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Which of the following is the smallest level of organization in living things?
A. organ system
B. cell
C. tissue
D. organ


Sagot :

Answer:

B. Cell

Explanation:

Order from smallest to most complex:

Cell - Tissue - Organ - Organ system.

Cells are the smallest. Multiple cells working together forms a tissue. Multiple tissues working together forms and organ. Multiple organs form an organ system.

Cell

Cells make tissue, tissues makes  organs, organs make a system.