2. A blood clot reduces blood flow to a person's foot. a) Which circulatory system (pulmonary OR systemic) is affected? Explain. [2 marks]
b) What might eventually happen to the person's foot? Explain why. [2 marks]
3. Write a brief description of what is happening at 1 and 4. [2 marks]

it would be c. xylem.

the wires in the toaster turning red and the toast crisping and turning brown

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.