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Our Body Video Lecture | Science Olympiad Class 4

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FAQs on Our Body Video Lecture - Science Olympiad Class 4

1. How does the respiratory system work?
Ans. The respiratory system works by bringing oxygen into the body through the process of inhalation. Oxygen is then taken up by the blood and transported to cells throughout the body. Carbon dioxide, a waste product, is removed from the body through exhalation.
2. What are the main organs of the digestive system?
Ans. The main organs of the digestive system include the mouth, esophagus, stomach, small intestine, and large intestine. These organs work together to break down food, absorb nutrients, and eliminate waste.
3. How does the circulatory system function in the body?
Ans. The circulatory system functions by pumping blood throughout the body, delivering oxygen and nutrients to cells and removing waste products. The heart acts as the main pump, while blood vessels transport blood to different parts of the body.
4. What is the role of the skeletal system in the body?
Ans. The skeletal system provides structure and support for the body, protects internal organs, and allows for movement. It also produces blood cells and stores minerals such as calcium.
5. How does the nervous system help the body?
Ans. The nervous system controls and coordinates all bodily functions by sending electrical signals between the brain, spinal cord, and nerves. It helps with communication, movement, and the regulation of bodily processes.
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