B. prokaryotic because prokaryotic cells lack a nucleus and membrane-bound structures.
Answer: The correct answer is Option B.
Explanation:
For the given options:
Option A: Autotrophic organisms are defined as the organisms which produce their own food for survival. For Example: Green plants
Option B: Prokaryotic organisms are a unicellcular organisms which lack a membrane bound organelles like mitochondria, nucleus etc.. For Example: Bacteria.
Option C: Eukaryotic organisms are multicellcular organisms which have membrane bound organelles like mitochondria, nucleus etc.. For Example: Human beings.
Option D: Heterotrophic organisms are defined as the organisms which do not produce their own food. For Example: Tigers, Lions etc..
Hence, the correct answer is Option B.
