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Investigate the effect of temperature change on the blood vessels of the frog's foot by flooding the web with a small quantity of ice water. Observe the blood vessels with low-power magnification and note any changes in their diameters or the rate of blood flow. Remove the ice water and replace it with water heated to about 35°C (95°F). Repeat your observations.

What do you conclude from this experiment?

Sagot :

GinnyAnsweridn

Final answer:

Vasoconstriction and vasodilation play crucial roles in blood vessel responses to temperature changes.


Explanation:

Vasoconstriction and vasodilation are key processes in regulating blood vessel diameter and blood flow. In the experiment with the frog's foot, the cold water caused vasoconstriction, leading to a decrease in blood vessel diameter and blood flow rate. Conversely, the hot water at 35°C induced vasodilation, resulting in an increase in blood vessel diameter and blood flow rate.


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