the answer is smooth muscles
Physical fitness is the ability of an individual to perform day to day activities without fatigue. It involves several aspects, including cardiovascular ability, muscular strength, and flexibility. Proper diet and sleep can help someone attain physical fitness, and physical fitness improves overall physical health.
I think the answer is D but i'm not to sure about it
I think it would be a because theirs no one around to see you not wearing one.<span />
Answer: The human body is designed to experience stress and react to it. Stress can be positive ("eustress") -- such as a getting a job promotion or being given greater responsibilities -- keeping us alert and ready to avoid danger. Stress becomes negative ("distress") when a person faces continuous challenges without relief or relaxation between challenges. As a result, the person becomes overworked and stress-related tension builds.
Explanation: