3.The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold. Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
4.When a person takes part in exercise the cardiovascular, respiratory, energy and muscular systems all work together to supply energy to the working muscles and remove waste products. When the muscles start to work, they need more oxygen so the respiratory system responds by getting more oxygen into the lungs.
Answers & Comments
Answer:
1. Musculoskeletal system
2.Muscles
3.The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold. Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
4.When a person takes part in exercise the cardiovascular, respiratory, energy and muscular systems all work together to supply energy to the working muscles and remove waste products. When the muscles start to work, they need more oxygen so the respiratory system responds by getting more oxygen into the lungs.
Explanation:
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