What is the basic unit of life?
Which system includes the skin, hair, and nails?
What is a collection of tissues that perform a specific job?
What is the function of the skeletal system?
What is the function of the integumentary system?
What is a tissue made of?
How do muscles help the body move?
Which body system has bones for structure and protection?
What is the main function of the circulatory system?
What do arteries carry in the circulatory system?
What is the primary function of blood in the body?
What is the purpose of the respiratory system in the body?