A. Cells have characteristic structures and functions that make them distinctive.
B. Processes in a cell can be classified broadly as growth, maintenance, reproduction, and homeostasis.
C. Life can be organized in a functional and structural hierarchy ranging from cells to the biosphere.
D. Most multicellular organisms are composed of organ systems whose structures reflect their particular function.
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Explore the Theory of Endosymbiosis which links the origins of mitochondria and chloroplasts in eukaryotes with prokaryotic ancestors.
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Original Student Tutorial
Explore the Theory of Endosymbiosis which links the origins of mitochondria and chloroplasts in eukaryotes with prokaryotic ancestors.
Type: Original Student Tutorial