The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.
Answer:
Depends on what you are changing.
Explanation:
Protons have a positive (+) charge.
Neutrons have a neutral (0) charge.
Electrons have a negative (-) charge.
Since neutrons only affect atomic mass, we don't need to worry about it changing the charge.
If we had more protons than electrons, then since there are more + charges, the entire atom would be positively charged.
If we had more electrons than protons, then since there are more - charges, the entire atom would be negatively charged.
Answer:
At 2 minutes the student's heart rates started to increase showing evidence of exercise.
Explanation:
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