1. How does an organ differ from an organ system?
2. Name five main organ systems in our body.
3. What are the functions of our skeleton?
4. Why is the brain the most important part of our body?
5. Why does the food you eat have to be digested?
6. What is the function of the excretory system?
Answers
Answer:
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Answer:
1. Organs are structures composed of two or more tissues; organ systems are systems composed of two or more organs.
2.
Integumentary System.
Skeletal System.
Muscular System.
Nervous System.
Respiratory System.
3. Support, Shape, and Protection
Support, Shape, and ProtectionThe skeleton supports the body and gives it shape. Without the rigid bones of the skeletal system, the human body would be just a bag of soft tissues, as described above. The bones of the skeleton are very hard and provide protection to the delicate tissues of internal organs.
4. The brain controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body. The central nervous system (CNS) is composed of the brain and spinal cord.
5. Digestion is the process by which food and drink are broken down into their smallest parts so that the body can use them to build and nourish cells and to provide energy.
6. The Excretory system is responsible for the elimination of wastes produced by homeostasis. There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system.
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