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Unformatted text preview: Prokaryotes because members of both groups have simple cells with no membrane-bound organelles. Eukaryotes-have complex cells with membrane- bound organelles including mitochondria and chloroplasts thought to have entered eukaryotic cells via endosymbiosis-are often (but not always) multicellular-often (but not always) undergo sexual reproduction Earth is about 4.5 billion years old. The first life on Earth was prokaryotic cells that appeared about 3.5 BYA (the very first cells may have arisen spontaneously from the early ocean). The first Eukaryotes appeared about 2.5 BYA...
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This note was uploaded on 09/18/2011 for the course BIO 142 taught by Professor Jarrell during the Spring '11 term at Delgado CC.
- Spring '11