Because it's someone made of cells asking the question. :)
Who knows what forms life has taken elsewhere in the universe?
Viruses are noncellular, by the way.
2006-11-13 09:58:22
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answer #1
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answered by John's Secret Identity™ 6
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2016-08-10 04:48:01
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answer #2
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answered by ? 3
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The cell is one of the most basic units of life. There are millions of different types of cells. There are cells that are organisms onto themselves, such as microscopic amoeba and bacteria cells. And there are cells that only function when part of a larger organism, such as the cells that make up your body. The cell is the smallest unit of life in our bodies. In the body, there are brain cells, skin cells, liver cells, stomach cells, and the list goes on. All of these cells have unique functions and features. And all have some recognizable similarities. All cells have a 'skin', called the plasma membrane, protecting it from the outside environment. The cell membrane regulates the movement of water, nutrients and wastes into and out of the cell. Inside of the cell membrane are the working parts of the cell. At the center of the cell is the cell nucleus. The cell nucleus contains the cell's DNA, the genetic code that coordinates protein synthesis. In addition to the nucleus, there are many organelles inside of the cell - small structures that help carry out the day-to-day operations of the cell. One important cellular organelle is the ribosome. Ribosomes participate in protein synthesis. The transcription phase of protein synthesis takes places in the cell nucleus. After this step is complete, the mRNA leaves the nucleus and travels to the cell's ribosomes, where translation occurs. Another important cellular organelle is the mitochondrion. Many mitochondrion are often referred to as the power plants of the cell because many of the reactions that produce energy take place in mitochondria. Also important in the life of a cell are the lysosomes. Lysosomes are organelles that contain enzymes that aid in the digestion of nutrient molecules and other materials.
2006-11-13 10:07:02
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answer #3
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answered by Angel****1 6
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Every living thing on Earth is made of cells., humans, animals, plants, are all made up of cells. Thats why they call cells the basic unit of life.
2006-11-13 10:54:57
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answer #4
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answered by Chase 4
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Because no one has ever discovered anything smaller that is considered living. And everything living is a cell or is made of cells.
It is a circular question that has no real answer because cells, when they were discovered, were defined as the basic unit of life.
2006-11-13 10:00:27
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answer #5
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answered by Shanna J 4
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because the basic units of life are called cells.
2006-11-13 09:58:45
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answer #6
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answered by Everyman 3
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calls are the basic unit of life because all LIVING things are made of cells(as stated in the call theory) its the same reasons that Atoms are the building blocks of matter, they make up all matter. except cells just make up all living things not all things.
2006-11-13 11:09:08
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answer #7
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answered by leafy 2
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Because of simplicity and perfect life process.
2006-11-13 10:24:20
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answer #8
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answered by moosa 5
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