Which gas passes from the air sacs in the lungs into the blood capillaries? b. Where does this gas pass out of the bloodstream?
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Here's a graph showing the stages.
Look closely at the second stage-- the death rate is low but the birth rate is high.
It's <span>D. The death rate begins to fall, but birth rates remain high for a time.</span>
Look closely at the second stage-- the death rate is low but the birth rate is high.
It's <span>D. The death rate begins to fall, but birth rates remain high for a time.</span>