Biology, 05.05.2021 02:10 aubreymoore4553
Carbon dioxide levels in the beginning of the Industrial Revolution was about 280 ppm (parts per million). If carbon dioxide levels have increased 38%, how much carbon dioxide is now in the atmosphere?
737 ppm
386 ppm
10640
8960 ppm
Answers: 1
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Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed
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