A: Acceleration
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An epigeneticist studies the influence of the environment on gene expression. So, things like long-term exposure to sun light or family dynamics would be good things to look for in her project.
<span>If the number of electrons is less than the number of protons, the particle is a positive ion, also called a cation.
</span><span>If the number of electrons is greater than the number of protons, the particle is a negative ion, also called an anion.
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I believe the answer is C. They are a type of jelly fish.