All of the chemical reactions in an organism required to sustain life
Answer:
D) Only cells containing Mitochondria can reproduce.
The answer is A. A water molecule
because you’re removing H2o
Answer: <u>External respiration</u>
It is a process where oxygen from the lungs diffuse into the blood and carbon dioxide collected from the cells, goes into the alveolar space of the lungs. It is also called as <u>breathing</u>, where air from outside is inhaled through the nose and goes to the lungs. From there it goes through the blood to every cell of the body.