Consider how a single-celled organism contains the necessary structures to eat, grow, and reproduce
Cells are the basic units of life.
Encyclopædia Britannica, Inc.
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© Open University (A Britannica Publishing Partner)Learn about the element of indeterminacy in Niels Bohr's interpretation of quantum mechanics and about Albert Einstein's objections to indeterminacy.
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Encyclopædia Britannica, Inc.The frequency and amplitude of sound waves as registered on an oscilloscope.
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Encyclopædia Britannica, Inc.We're basically living in one big lava lamp.Media Editors: Michele Metych , Lauren Sims
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Encyclopædia Britannica, Inc.The nucleus, ribosomes, and mitochondria are all examples of organelles.
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© Open University (A Britannica Publishing Partner)Basic similarities between cells and ways cells may vary depending on their function.
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Encyclopædia Britannica, Inc.Hormones secreted by the glands of the endocrine system are carried in the bloodstream to distant target cells.
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Encyclopædia Britannica, Inc.Learn about the different cell organelles, including the mitochondrion, the nucleus, the ribosome, and others.
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• Oct. 14, 2026, 3:00 AM ET (New York Times)
Transcript
[Music in]
NARRATOR: Yet, the single celled organism, living in a drop of water, is complete unto itself. No larger than a speck of dust, it contains all the structures needed to eat, grow, and reproduce another of its own kind. Within each cell membrane, the process is complete. This is the cell--the basic unit of life.
[Music out]
NARRATOR: Yet, the single celled organism, living in a drop of water, is complete unto itself. No larger than a speck of dust, it contains all the structures needed to eat, grow, and reproduce another of its own kind. Within each cell membrane, the process is complete. This is the cell--the basic unit of life.
[Music out]
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