Answer:
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This would be the right answer: <span>through directional selection, stabilizing selection, and disruptive selection
I hope this help
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Circumstance <span>that cause an increase in Blood Pressure:
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- increasing levels of aldosterone ((influences the reabsorption of sodium and excretion of potassium in the
kidneys. This will indirectly influence the blood pressure since the
volume of blood will change)
<span>- vasoconstriction ( blood vessels increase their contraction, which equals to more pressure)
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-increased release of renin (Converts angiotensinogen, secreted in the liver, into angiotensin I).
- increased activity of Angiotensin-converting enzyme ( this enzyme converts angiotensin I into angiotensin II increasing vasoconstriction).
Circumstances that cause<span> a Decrease in Blood Pressure:
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<span>- decreased sodium reabsorption ( by decreasing sodium, the amount of water will also decrease or , in other words,will be excreted. Less water, will decrease volume of blood and that means less blood pressure)
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- vasodilation (The smooth muscle in the <span>blood vessels decrease their contraction, which equals to less pressure)
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- declining levels of ADH(ADH <span>is produced in the hypothalamus and stimulates
vasoconstriction plus it promotes water reabsorption in the kidneys. To reduce blood pressure, is important to have ADH levels reduced)</span>