Body systems

Which organ system in humans is most directly involved in the transport of oxygen?

• A. Nervous

• B. Excretory

• C. Digestive

• D. Circulatory

What are the two main processes carried out by the excretory system?

• A. Absorbing needed nutrients and getting rid of the excess

• B. Separating and eliminating wastes from the body

• C. Maintaining weight and regulating temperature

• D. Controlling the amount of water in the body and eliminating salt

What is one of the main functions of the endocrine system?

• A. To provide support for different tissues

• B. To coordinate the actions of its muscles

• C. To control the coordination of gas exchange

• D. To control the secretion of hormones

Which systems are responsible for removing carbon dioxide from the body? Select two correct answers.

• A. The endocrine system

• B. The circulatory system

• C. The muscular system

• D. The respiratory system

• E. The integumentary system

The main function of this system is to —

• F. control reproduction

• G. transport oxygen

• H. produce hormones

• J. remove waste

Which of the following organs in your digestive system is necessary to eat a sandwich?

• A . mouth

• B. stomach

• C. small intestine

• D. All of the above

Using the table, what can be inferred about the function of the digestive system?

• A . The digestive system takes proteins from cells.

• B. The digestive system only breaks down fats.

• C. The digestive system removes wastes from cells.

• D. The digestive system extracts nutrients for cells to use.

What is the main function of the circulatory system?

• A . To distribute blood throughout the body

• B. To remove excess and waste materials from the body

• C. To secrete hormones in different areas of the body

• D. To coordinate the actions of the body

Which of the following accurately describes the relationship between the lungs, the trachea, and the alveoli in the respiratory system?

• A . They work together to allow gas exchange.

• B. They work together to obtain nutrients to deliver to cells.

• C. They work together but with completely separate functions.

• D. They work together to transport blood.

 

One of the main functions of the respiratory system is to —

• A . provide a large surface area for gas exchange due to alveoli in the lungs.

• B. transport hormones throughout the body to stimulate chemical signals.

• C. absorb and distribute nutrients.

• D. release liquid waste products.