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NeX [460]
3 years ago
15

A scientist has a hunch that students learn best when they write down information with a pencil or pen. He organizes his student

s into two groups. Half of his students use pencil use pencil or pen to take notes in class every day and the other half type their notes on their laptops. At the end of the unit, all the students take the test and he looks at their scores to determine the outcome of the experiment. What is the dependent and independent variable? 100 points!!!!
Biology
1 answer:
user100 [1]3 years ago
3 0

Answer:

The correct answer would be :

independent variable : use of pen or pencil

Dependent variable : test scores (test of learning ability)

Explanation:

Independent variable of any scientific investigation or experiment is a variable that is manipulated or changed to see the change in dependent variable. In this case the variable that is changed or manipulated is use of pen or pencil to see that effect on learning ability.

Dependent variable is something that is measured or calculated to find the effect of the independent variable. In this case the dependent variable is test score that will provide idea that if hunch of scientist is true or not.

Thus, the correct answer would be :

independent variable : use of pen or pencil

Dependent variable : test scores (test of learning ability)

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Increase in heart rate.

Increase in respiratory rate.

<h2>What is a sympathetic nervous system?</h2>

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Two additional parts make up the peripheral nervous system. Skeletal muscle movement that is voluntary is controlled by the somatic nervous system. The somatic nervous system is at action when you choose to bring your coffee cup to your lips; it is doing so by engaging the necessary muscles. The autonomic nervous system, which regulates functions outside of our conscious awareness, is the second part of the PNS.

The parasympathetic nervous system and the sympathetic nervous system are additional divisions of the autonomic nervous system (which you are interested in). They have negative consequences on one another, to put it very broadly. While the parasympathetic neural system largely works to calm the body, the sympathetic nervous system often stimulates the body. Although this is a streamlined perspective, it might be helpful to think about it this way.

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The parasympathetic division, in contrast, slows the heart rate, tightens the bronchi in the lungs, and boosts blood flow to the digestive system. The phrase "relax and digest" has been used to describe it.

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