Podcast
Questions and Answers
What can happen if there is not enough oxygen for your cells?
What can happen if there is not enough oxygen for your cells?
- The lungs exchange gases rapidly
- The skin becomes more sensitive
- Cells can start to die (correct)
- The blood vessels in the skin widen
Why do blood vessels in the cardiovascular disease become narrower?
Why do blood vessels in the cardiovascular disease become narrower?
- To prevent frostbite
- To increase blood flow
- Due to a fatty substance buildup (correct)
- To improve body temperature regulation
What can occur if blood vessels in your skin narrow due to cold temperatures?
What can occur if blood vessels in your skin narrow due to cold temperatures?
- Sunburn on the skin
- Increased blood flow to the cells
- Improved gas exchange in the lungs
- Less blood reaches the cells (correct)
What might happen if the blood supply in cardiovascular disease is reduced?
What might happen if the blood supply in cardiovascular disease is reduced?
In what condition can poor gas exchange in the lungs cause significant health problems?
In what condition can poor gas exchange in the lungs cause significant health problems?
How does light travel compared to sound?
How does light travel compared to sound?
Why do you see flashes before you hear bangs in an explosion?
Why do you see flashes before you hear bangs in an explosion?
What happens when light reaches an opaque material?
What happens when light reaches an opaque material?
Which type of material allows light to pass through but scatters the rays in different directions?
Which type of material allows light to pass through but scatters the rays in different directions?
How can energy be transferred from an exploding firework to the audience?
How can energy be transferred from an exploding firework to the audience?
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