Answer:
Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
Answer:
c. More oxygen and less carbon dioxide
Explanation:
The composition of air in the layers between the soil is called soil atmosphere or gas.
The maximum percentage of gas in soil is nitrogen with 79.2 %. Then it is oxygen with 20.6 % and the last is carbon dioxide with 0.25 %. These gases are required in order to maintain life under the ground. The roots of trees and the microorganisms require soil atmosphere to carry out their functions.
Answer:
Explanation:hola me respuesta es d
Si juegas free fire bn garcias por escucharme
Explanation:Explanation:hola me respuesta es d
Si juegas free fire bn garcias por escucharme
C.) D<span>iscontinue the use of irrigation systems</span>
When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
