QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
"Which of the following best describes the endosymbiont/endosymbiotic theory?
A. The theory that states that eukaryotic cells derived from a symbiotic relationship with prokaryotic cells.
B. The theory that states that prokaryotic cells derived from larger prokaryotic cells.
C. The theory that states that eukaryotic cells derived from smaller eukaryotic cells."
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Answer
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Step 1I'll solve this problem step by step, focusing on the endosymbiont theory:
Step 2: Understand the Endosymbiont Theory
The endosymbiont theory explains the origin of certain organelles in eukaryotic cells. Specifically, it proposes that mitochondria and chloroplasts were originally free-living prokaryotic cells that were engulfed by larger prokaryotic cells.
Final Answer
Option A is the best description of the endosymbiont theory, which states that eukaryotic cells derived from a symbiotic relationship with prokaryotic cells.
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