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2 years ago

In the spinal cord, white matter is separated into ascending and descending tracts organized as

1 answer:

5 0

White matter in the spinal cord is named as such because of it's paler color than the other areas which are darker (gray matter). The light color is due to the presence of myelin, a fatty substance which speeds up the rate that electrical impulses travel to and fro the neurons.
Spinal white matter is separated into ascending and descending tracts organized as vertical columns within the cord. There are many names for these specific tracts, usually based upon where the signals traveling in a specific column began, and where it leads to. Such as the Spino-Thalamic tract, which starts in the spinal cord and travels to the Thalamus of the brain. This gives us a uni-directional flow of information, from bottom (spine) to top (brain), so the Spino-Thalamic tract is an ascending column of white nerves.
On the other hand, the Cerebro-Spinal tract descends, from the cerebral of the brain down the spinal cord to reach different parts of the body.

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

<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

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Question 8(Multiple Choice Worth 4 points)

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Answer:

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Answer:

The correct answer is D

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