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The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
Question

Unicellular organisms take in oxygen and pass out carbon dioxide through:

  1. Diffusion.
  2. Exosmosis.
  3. Endosmosis.
  4. Active transport.
✓

Answer

  1. Diffusion.

Explanation:

In unicellular organisms like Amoeba, gaseous exchange takes place through the process of diffusion.

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