The endosymbiosis hypothesis proposes that

A) two separate cells worked cooperatively and one benefited from the other.
B) a small cell lived inside a larger cell to the benefit of both cells.
C) a large cell engulfed and digested a smaller cell, exposing its enzymes for use by the larger cell.
D) two cells merged into one cell, improving the enzyme function of the new cell.


Answer: B

Biology & Microbiology

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