No, oranges do not breathe oxygen after they are picked. Once an orange is harvested, it no longer undergoes respiration like a living organism.
Maybe yes, maybe no!
Eat them.
Scientific studies show that oranges tend to gain vitamin C after they are picked. After being picked oranges ripen quicker. This is the point at which the fruit builds its vitamin C content.
yes they do.
oxygen
Oxygen is picked up by the blood when it is at the lungs.
Oxygen is picked up in the lungs when you inhale air. The oxygen is then transported from the lungs to the rest of the body by red blood cells in the circulatory system.
alveoli
It depends on whether the orange is picked or not. An orange does not continue to ripen after being picked. You might have heard they ripen quicker in the dark because in tropical areas it takes a cool night for the vivid color to set in. However, the oranges color does not always indicate its ripeness. For instance, most Florida oranges are dyed in order to enhance their appeal to consumers.
Possibly because they have not been picked when immature and artificially ripened with ethylene gas.
Yes... The speakers emit soundwaves - which are picked up by our ears.