Eukaryote
an organism whose cells CONTAIN a nucleus & organelles enclosed by membranes
Eukaryotes are organisms whose cells contain a nucleus and other membrane-bound organelles. They may be single-celled or multicellular and can be found in various kingdoms of life, including plants, animals, fungi, and protists. The presence of a nucleus is one of the defining features of eukaryotes, as it contains the DNA that carries genetic information and is separated from the cytoplasm by a nuclear membrane. Eukaryotes also have other membrane-bound organelles, such as the mitochondria and chloroplasts, which enable them to carry out a range of cellular processes, including energy production, protein synthesis, and photosynthesis. Eukaryotes are thought to have evolved from a common ancestor around 1.6 billion years ago, and their complex cellular structure has allowed them to thrive in a wide range of environments and adapt to changing conditions over time.
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