Answer:
B. An astronaut in a spaceship
<u>Isolated</u><u> </u><u>system</u><u> </u><u>:</u><u>-</u>
In an isolated system, there is no transfer of energy or matter between the system and the environment.
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Answer:
The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out. When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward.
Explanation:
I prefer using the slope formula because it’s easy to pick two numbers on a graph and solve for the slope with a simple equation.