Question

out it: write the letter of the correct choice in the blank.

1. which body system is used more heavily during aerobic exercise than during anaerobic exercise?

a. endocrine c. integumentary
b. respiratory d. muscular

1. not having a properly balanced diet can lead to conditions such as anemia, a lack of iron in the diet. what causes nutritional deficiencies such as anemia?

a. malnutrition c. dental carries
b. melanoma d. atrophy

1. eating a diet high in saturated fats can increase the cholesterol levels in the blood. which of the following conditions is most likely to be caused by eating too much saturated fat?

a. arrhythmias c. atherosclerosis
b. metastasis d. allergies

Explanation:

1. Aerobic exercise requires more oxygen intake, so the respiratory system is more heavily used. Anaerobic exercise doesn't rely as much on oxygen for energy production.
2. Malnutrition is a lack of proper nutrients (like iron in the case of anemia). Melanoma is a skin cancer, dental carries are tooth decay, and atrophy is tissue wasting.
3. A diet high in saturated fats can lead to atherosclerosis (plaque buildup in arteries). Arrhythmias are heart rhythm problems (not directly from saturated fat in most cases), metastasis is cancer spreading, and allergies are immune - related.

Answer:

1. B. respiratory
2. A. malnutrition
3. C. atherosclerosis