Where are internal organs located?

• on the inside of an animal's body

• on the outside of an animal's body

Which of the following is not an internal organ?

• lungs

• brain

• heart

• skin

Body system that helps blood circulate throughout our body

• circulatory system

• digestive system

• skeletal system

• respiratory system

Body system that helps us to breathe in oxygen and breathe out carbon dioxide

• circulatory system

• digestive system

• skeletal system

• respiratory system

Body system that protects our internal organs (heart, lungs, etc.) and helps us to move around!

• circulatory system

• digestive system

• skeletal system

• respiratory system

Body system that helps us to digest food

• circulatory system

• digestive system

• skeletal system

• respiratory system

Which body system is being shown in the diagram?

• circulatory system

• digestive system

• skeletal system

• respiratory system

Which body system is being shown in the diagram?

• circulatory system

• digestive system

• skeletal system

• respiratory system

Which body system is being shown in the diagram?

• circulatory system

• digestive system

• skeletal system

• respiratory system

What main organs are found within the circulatory system?

• heart, blood, arteries, veins

• esophagus, stomach, liver, intestines

• bones

• mouth, nose, lungs, diaphram