A sickled cell has more of a "banana" shapped curve.
This curve often gets stuck in blood vessels, causing a clot
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we often yhink of mutations as a negative thing, but that isn't always the case. these errors, or changes in DNA, are essential to evolution. usually they're neither good or bad, just different. alleles are what make us unique such as our hair color, skin color, height, etc
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Definition (http://en.wikipedia.org/wiki/Saprophytism) Saprotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of dead or decayed organic matter. It occurs in saprotrophs or heterotrophs, and is most often associated with fungi, for example Mucor and Rhizopus. (
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animals that are weak in some ways, make up for it with their powerful anti-preditor abilities, whether poison or a foul smell.
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