D or aka changes in the moons orbit
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Out of the choices given, the mechanisms that drives evolution is natural selection. The correct answer is B, natural selection.
Plant cells have a cell wall and cell membrane but animal cell have only a cell membrane.
Answer:
Cell biology is a branch of biology that studies the structure, function and behavior of cells. All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. Cell biology is the study of structural and functional units of cells.
