yes they can!!!
Maybe yes, maybe no!
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.
Eat them.
yes they do.
oxygen
Oxygen is picked up by the blood when it is at the lungs.
alveoli
In your lungs.
Yes... The speakers emit soundwaves - which are picked up by our ears.
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.
Because they consume oxygen and emit gases.
Possibly because they have not been picked when immature and artificially ripened with ethylene gas.