The answer here is option (D). Any of the above for an extended period of time
Crunches or sit ups are good methods to strengthen the abdominal muscles
The correct answer is iodine
Answer:
transporting oxygen and nutrients to the lungs and tissues.
forming blood clots to prevent excess blood loss.
carrying cells and antibodies that fight infection.
bringing waste products to the kidneys and liver, which filter and clean the blood.
regulating body temperature. Explanation: hope this helped you!
