Answer:
Digestive
Explanation:
The by-products of digestion are solid waste which is removed through egestion.
I think you should put a check mark by 2, 3,
5, and maybe 6.
Hope this helps.
1000 grams are in one kilogram
The answer is iron. Research has shown an increase in serum iron concentreation in athletes and a concomitant decrease in magnesium ions. The increase in iron concentration is thought to be attributed to tissue injury from the strenuous physical activity. The decrease in magnesium is due to demand by the skeletal muscles.
