单语范例（未经PONS编辑处理）
英语
- The strongest evidence is that all known eukaryotes have mitochondria, which almost certainly evolved through endosymbiosis with an alpha-proteobacteria (a highly evolved group of bacteria).en.wikipedia.org
- The oldest known fossil eukaryotes are about 1.7 billion years old.en.wikipedia.org
- Splicing, or the removal of introns, is a major aspect of post-transcriptional modification, and takes place only in the nucleus of eukaryotes.en.wikipedia.org
- As bikonts, they all descend from a heterotrophic eukaryote with two flagella.en.wikipedia.org
- Sequences from aerobic, anaerobic, psychrophilic, thermophilic, halophilic, alkaliphilic, acidophilic, desiccation-resistant, autotrophic, and heterotrophic organisms were present, including a number from multicellular eukaryotes.en.wikipedia.org
- These proteins have homologs in eukaryotes, archaea and bacteria.en.wikipedia.org
- Both bacteria and eukaryotes, but not archaea, make spores.en.wikipedia.org
- Two classes of thioredoxin reductase have been identified: one class in bacteria and some eukaryotes and one in animals.en.wikipedia.org
- The chloroplasts of such eukaryotes are typically surrounded by more than two membranes, reflecting a history of multiple engulfment.en.wikipedia.org
- Within the cells of eukaryote organisms the contents of the cell nucleus are separated from the cytoplasm, and are then called the nucleoplasm.en.wikipedia.org
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英语