Describe the flow of blood in the human body, including through each of the four chambers of the heart. explain how the blood changes as it moves through various locations in the body.

The blood changes as one size is deoxgenated and the other is not as one goes to the lungs one comes from the lungs one goes to the heart and one goes from the heart

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

europe would not recognize the confederacy as an independent nation.