Question

4. Name an organ whose muscles never stop and works repeatedly throughout out it Answer in a sentence or two, 1. What do you mean by a streamlined body? 2. What is the function of tendons? 3. What are ligaments? 4. What is the function of the ribcage? 5. What is the function of the vertebral column? Answer in 30-40 words. 1. What is a joint? Give the name and function of different types of joints. 2. What are the functions of the skeletal system? 3. How do birds fly and fish swim in water? 4. How do muscles and bones together cause movement in humans? 5. How do snakes move? Draw a diagram to show its movement. 6. How does an earthworm move? 107 Interactive Science​

Answer 1

Answer:

the organ that never stops is heart or cardiac muscles