In pulmonary (blood) circulation, blood travels from our heart to our lungs and back What is the purpose of our heart pumping blood to our lungs that ultimately
keeps our cells healthy?
a. Our lungs need blood to make oxygen.
b. Our blood goes to the lungs to get carbon dioxide and drop off oxygen.
c. Our lungs need blood to be able to contract and inhale,
d. Our blood goes to the lungs to get oxygen and drop off carbon dioxide.

What is meant by a symmetrical unimodal distribution? a. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. b. a distribution is a pattern of frequencies for the various values of a variable collected in a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. c. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is a uniform frequency, meaning the frequency of every value is same, and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other.

In russia, after the soviet union collapse, influential retained power by acquiring large numbers of , so the ruling class gained power in place of power.

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