Which of the following best describes the function of this system?

• Absorbing nutrients from food

• Protecting the body from infection

• Exchanging gases with the environment

• Responding to stimuli in the environment

Where does the digestion process begin?

• mouth

• stomach

• small intestine

• large intestine

How does heat energy get to Earth from the Sun?

• transpiration

• radiation

• conduction

• convection

Which answer choice represents radiation happening in this image?

• Air particles

• The fire

• The boiling water inside the pot

• The stick touching the hot pot handle

The interaction of the skeletal and muscular systems to produce locomotion (working together) is coordinated by which human body system?

• Circulatory System

• Excretory System

• Nervous System

• Respiratory System

What are the two functions performed by this body system?

• protect and support the body

• convert food into useful energy

• controls all body activities

• delivers gases and nutrients to cells

Which statement below explains why it is necessary that the respiratory and circulatory system work together in order to survive?

• The blood in arteries and veins makes oxygen which goes to the lungs in order for us to breathe

• Breathing oxygen into the lungs draws blood from the arteries and veins which helps exhale oxygen out

• Lungs breathe in oxygen and the heart pumps blood which carries the oxygen to all other organs

• Lungs breathe in oxygen and the circulatory system sends messages to other organs to absorb the oxygen

Congenital myopathy is a disorder that is seen in some babies. Typically, a baby with congenital myopathy will be "floppy." The baby will have difficulty breathing or feeding. Infants with congenital myopathy will have very little control of their arms and legs. Signals from the brain are unable to get arms and legs to respond. This disorder most likely affect the--

• cardiovascular and respiratory systems

• muscular and skeletal systems

• digestive and skeletal systems

• nervous and muscular systems

The digestive system is the body's--

• breathing system

• system of nerves

• food-processing system

• blood-transporting system

Which answer choice represents conduction happening in this image?

• Air particles

• The fire

• The boiling water inside the pot

• The stick touching the hot pot handle