Cataplexy is a loss of muscle tone or control that is often associated with narcolepsy.
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I think the most challenging part of human remains would be knowing that you're working with parts of a person who used to be alive. The most interesting part would be figuring out the person's past based on their remains like what they ate, their cultural background, etc.
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I believe B because the world has changed in many conditions over time and the other questions fall into the aspect of Environmental change in conditions
Answer:
At least two genes are involved in hair color. One hair color phenotype (brown vs. blond) has a dominant brown allele and a recessive blond allele. A person with a brown allele will have brown hair; a person with no brown alleles will be blond.
Explanation: