1.

Complete the flowchart cell-?-?-?- organism​

Answer»

ong>Answer:

The CELLS MAKE up the TISSUE which aggregate to form the organ followed by the organ SYSTEM. The lung is the example of the organ. There are alveolar cells and MACROPHAGES which make up the lung. There are blood vessels which are responsible for the exchange of gases.

Thus, the correct answer is option D.



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