Answer:
muscle cross sectional area is usually the greatest.
Explanation:
Aging process is something no one can avoid. As we are getting older, many things in our body changes. Like losing collagen after we reach 25 years of life, it's decreasing more and more as we are getting older. The same is with muscles. The case of losing muscles is called aging sarcopenia. It starts to begin around 25 years of life, but it reaches its maximum at the age of 65. It's natural that if we start to lose our muscles, we start to get weak. The same is with balance.
B. Old Stone Age.........................
A medical professional would definitely not approve of quick weight loss, A med. professional would more likely recommend a neurologist for ADHD symptoms like Chris has, and they would recommend a supplement like acidophilus for digestive disorders like Diane's lactose intolerance, so I believe the answer is the last choice given.
Explain the role of Calcium(Ca+) in askeletal muscle contraction. Role of calcium { Ca++}: By BONDING to the TROPONIN it causes the TROPOMYOSIN to MOVE from its blocking position on the active sites on the actin filaments SO the CROSS BRIDGES CAN ATTACH.
This could be many things. It's common for young girls you have irregular periods but could also be a health problem. There is also a possibility of pregnancy if she is sexually active.
