I believe the correct answer from the choices listed above is the first option. Every human body has an uncountable number of this basic unit of a muscle known as muscle fibers. <span>A muscle fiber is composed of many fibrils, which give the cell its striated appearance. Hope this answers the question.</span>
Answer:
Healthy lifestyle
Explanation: We should always adapt for a healthy lifestyle because it can make us disease free and always fit. Whereas junk food and lifestyle can be harmful for our body and can give us diseases. So, healthy adaption is better.
Answer:
keep their heart and lungs strong and healthy,
become more flexible,
develop strong bones,
keep a healthy body weight,
lower the risk of several diseases and health problems,
improve their mood and self-esteem, and
do better in school
Hope this helped have an amazing day!