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_ The cell walls of bacteria, fungi, and plant cells and the extracellular matrix 0119animal cells are all external to the plasma membrane. Which of the following icharacteristic common to all of these extracellular structures?A. They must block water and small molecules to regulate the exchange of matterand energy with their environment. B. They must permit information transfer between the cell's cytoplasm and thenucleus. C. They must provide a rigid structure that maintains an appropriate ratio of cellsurface area to volume. D. They are constructed of polymers that are synthesized in the cytoplasm andthen transported out of the cell. E. They are composed of a mixture of lipids and nucleotides
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Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex
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Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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_ The cell walls of bacteria, fungi, and plant cells and the extracellular matrix 0119animal cells a...
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