Bio

gives the body structure and protects internal organs

• Skeleton

• heart

• brain

• teeth

works with the skeletal system to allow the body to move

• muscular system

• respiratory system

breaks down food to give the body energy

• Circulatory system

• digestive system

removes waste products from the body

• excretory system

• digestive system

carries needed materials to the body cells, including oxygen; carries waste away from the body, including carbon dioxide

• Respiratory system

• circulatory system

takes oxygen into the body when we inhale, and releases carbon dioxide when we exhale

• digestive system

• respiratory system

Biology means

• the study of matter

• the study of life

The largest group of the classification system is ..............

• Class

• Kingdom

The Shark is a ..............

• fish

• mammal

responds to stimuli in the environment, and controls most body functions

• nervous system

• respiratory system