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Mars2501 [29]
2 years ago
13

The walls of blood vessels have two layers of smooth muscle. One layer is lengthwise and the other layer is around the circumfer

ence of the vessel. Why is this arrangement important?
Biology
1 answer:
Roman55 [17]2 years ago
8 0
Imaging the blood vessel as a simple thinned walled tube.If you put reinforcing rings around it it would retain its shape where the rings were, <span>but in between the rings the blood pressure would cause it to bulge- it could also stretch lengthwise like a slinky.</span>
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  • The schematic representation in the diagram helps in the understanding of the setup for the experiments.
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  • A person will not be confident in experiment 3 results as the temperature is the independent variable that alters the results of evaporation.

<h3>What are the four foremost factors of a managed test?</h3>

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  • In the three experiments, the dependent variable is evaporation, as it changes with the change in another variable.

The independent variable in experiment 1 is temperature, experiment 2 is airflow, and experiment 3 is light.

  • The experiment can be understood better with the representation of the schematic that shows the setup to analyze how the experiment was performed. Therefore the diagram must add the schematic of the experiment.

  • The controlled items in the experiment are the variables that are set at the particular unit to form the result. the controlled item in experiment 1 is temperature, experiment 2 is airflow from the fan, and experiment 3 is the intensity of light.

  • The result of experiment 3 is based on the dependence on the intensity of light keeping temperature constant and controlled. If the temperature is not controlled in the experiment then it may lead to an alteration in the results as it depends on both light and temperature.

  • The flow chart for the increase in pressure affecting the evaporation is given in the image attached.

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