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Home Q & A Board Biology-Related Homework Help Cell Biology
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colleen colleen
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10 years ago
Why do some normal cells fail to respond to a chemical signal?
A) Chemical signals are only delivered to specific cells.
B) Some cells lack the necessary receptors.
C) Some cells are completely without receptors.
D) Some cells are completely without ligands.
E) Signal chemicals often break down before reaching a distant target.
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mikaelmikael
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colleen Author
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10 years ago
Wonderful!! Kitty
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