7. D; rest, hydration, and time
8. D
d. herpes
is an std that manifests itself with sores on the mouth or genitals.
The answer is to increase the minutes in which he is doing the exercise. He can just increase it by a couple of minutes and he will gradually improve his endurance.
Exercises that work the core are exercising muscles found in the Abdomen.
Answer: Swimming, Skiing, Hiking, Spinning, Running, Walking and Kickboxing
Explanation: These are sports that require you to have good coordination, stamina, and leg muscle
