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ozzi
3 years ago
6

Research has shown a connection between a deterioration of dopamine producing neurons and which neurological disorder?

Biology
2 answers:
Anna35 [415]3 years ago
6 0

Parkinson's disease

<span>Parkinson's disease results from deterioration of brain's nerve cells</span>
laila [671]3 years ago
4 0

Answer:

Parkinson's disease

Explanation:

Parkinson's is a progressive degenerative disorder in which neurons are affected in basal ganglia and substantia nigra of brain. These neurons are responsible for producing dopamine transmitter and in Parkinson's they start to die.

Loss of around 80% of dopamine results in the symptoms like Bradykinesia (slow movement, decreased blinking, drooling), stiffness, tremor, balance problem etc. Treatment is done by medication, brain stimulation surgery, exercise and diet.

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Will more air inside a basketball make it bounce higher?
marysya [2.9K]

The outcome variable, test variable, and controlled variable for each question is as follows:

  • outcome variable = bounce height; test variable = volume of air, and  controlled variable = basketball
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  • outcome variable = flower freshness, test variable = sugar added to water, and controlled variable = sunlight
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<h3>What are variables in an experiment?</h3>

A variable is any factor in an experiment that can be manipulated, controlled for, or measured.

There are three types of variables in an experiment:

  • Dependent variable or outcome variable
  • Independent variable or test variable,
  • Constant variable or controlled variable

The Dependent variable or outcome variable depends on changes in the independent variable.

An independent or test variable is the variable that stands alone and is not affected  by other factors in the experiment.

The constant or controlled variable is unchanged.

The outcome variable, test variable, and controlled variable for each question is as follows:

1. Will more air inside a basketball make it bounce higher?

  • outcome variable = bounce height;  test variable = volume of air, and  controlled variable = basketball

2. Do ''green'' cleaners clean as well as store bought cleaners?

  • outcome variable cleaning property; =  test variable = type of cleaner, and  controlled variable = cloth

3. Which colors of fabric absorbs most heat?

  • outcome variable = heat absorbed; test variable = fabric color, and  controlled variable = amount of sunshine

4. Do bigger seeds make bigger plants?

  • outcome variable =  plant size, test variable = seed size, and  controlled variable = sunlight

5. Does sugar added to water improve cut flower freshness?

  • outcome variable = flower freshness, test variable = sugar added to water, and controlled variable = sunlight

6. How do differences in surfaces affect the adhesion of tape?

  • outcome variable = adhesion of tape; test variable = differences surfaces, and controlled variable = paper

7. What ratio of vinegar to baking soda produces the best chemical volcano eruption?

  • outcome variable =  volcano eruption, test variable =  ratio of vinegar to baking soda, and controlled variable = container or bottle

In conclusion, changes done to the test variable results in changes in the outcome variable.

Learn more about test variable at: brainly.com/question/25223322

#SPJ1

6 0
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The danger of crops becoming extinct before scientists can study them is
shepuryov [24]

Answer:

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