The 20 minute physical activity I performed was doing yardwork. It was fairly easy to do, besides a lot of bending down involved to pick up sticks. I did it in my front and backyard for a bit over 20 minutes, and no one did it with me.
Answer:
answer to the question is B
Answer:
slow-twitch muscle fibers
Explanation:
Marathons, ultra-running, and longer course triathlon pulls in mostly slow-twitch muscle fibers. “Type I, slow-twitch muscle fibers, are also known as aerobic muscle fibers due to their ability to create energy from oxygen, allowing them to produce force over an extended period of time
