Which of the following is not true about the structure of an alveolus?

a. it has thick walls to trap gases that enter during the breathing
b. it has many capillaries running through its structure
c. it has high surface area allow lots of gas exchange
d. it has high concentration of oxygen and low concentration of carbon dioxide

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What type of chemical reaction occurs between silver nitrate (agno3) and copper (cu)? the equation i was given is 2agno3 + cu —> 2ag+ cu(no3)2.

Scuba divers use tanks of compressed air to them breathe. gases can be compressed because?