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konstantin123 [22]
3 years ago
14

Most of the rocks we study were formed in what era?

Biology
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

I think that answer A is correct

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(Marine science) The Atlantic puffin feeds on several species of Atlantic fish. A population of puffins living on Matinucus Rock
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Parkinson’s disease is a progressive disorder that is caused by degeneration of nerve cells in the part of the brain called the
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The Parkinson´s prevalence is 60,000 diagnosed cases per year, with an estimate of 1-1.5 million Americans ill,  and the incidence is 18,000 deaths (2003), affecting mostly after the age of 55, but sometimes 30 and 40.

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The common symptoms include  involuntary tremor in hands, arms, legs and jaw , muscle stiffness arms, shoulders or neck , gradual loss of movement which often leads to decreased mental skills, changes in voice and facial expression as blinking, swallowing and drooling , stooped posture, unsteady balance  and dementia.

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On going experimental research  on embryonic stem cells, although political and ethical controversial, might enable scientists to produce dopamine neurons in the laboratory for transplantation into humans offering hope for Parkinson's cure in the future.

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