Which part of the respiratory system is made up of two large organs that exchange carbon dioxide and oxygen?

alveoli

lungs

trachea

diaphragm

Amuscle that doesn’t need to be exercised regularly is your heart true or false ?

Which of the following must be cooked to 145º f? a. chicken and stuffing b. ground beef and eggs not served immediately c. beef roasts and seafood d. all of these must be cooked to 145° f.

Select all that apply. which of the following are functions of the skeletal system? 1. to provide the body with a strong and mobile framework 2. to allow the body to move 3. to protect internal organs from sunlight, bacteria, and injury 4. to supply the body with blood cells and minerals