Layer D is the youngest layer
Jerry should grab his personal respirator, quickly get a doctor's orders for the restraints, and rush to the room and restrain the patient. In texas you have to have a doctor's order before you can restrain a patient.
The membrane bound organelle you refer to is the Lysosome. The lysosome fuses with a vacuole where it digest the contents.
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
