This question has a two part answer. The first part is that an asteroid hitting the earth and the second part is massive volcanoes erupting around the world.
Hello!
The blood pressure is supposed to be stable at all times to prevent strokes or other deadly effects. You measure the blood pressure with a sphygmomanometer around the arm and listen to the pulse. When completed, you would write the blood pressure like so: 120 over 80. If you write it any other way, it would be incorrect, so you measure the first sound first, then when the sound stopped and remember to write "over."
I hope this helped you!
I am, yours most sincerely,
SuperHelperThingy
There are exchanges that happen continuously in our bodies. One exchange is the gas exchange, or respiratory, system. This is the system where carbon dioxide is released from the lungs into the air, and oxygen is taken into the lungs from the air. This exchange happens in the air sacs of the lungs called the alveoli.
Answer:
true
Explanation:
tissues are made up of cells
