I know for number 4 the answer is c, sorry I can't help with the others.
Answer:
The lung
Explanation:
The model of the respiratory system made by Megan consists of two balloons. The first balloon stretched across the bottom of the bottle represents the diaphragm which contracts and relaxes to allow air in and out of the lungs. The balloon inside the bottle represents one lung.
Breathing in causes the balloon inside the bottle to be filled with air. This is preceded by the expansion of the diaphragm which makes the lungs to be filled with air. Breathing out causes a contraction of the diaphragm thus making the lungs to let out air.
7. Atomic mass
8. Atomic number
9. Chemical symbol
10. Right
Answer:
They all have a certain amount of protons electrons and neutrons.
760.0 mmHg(V)=600.0mmHg(240.0mL)
600(240)/760=189mL
