For the first half of your question, plants do need to eat. In fact, they are autotrophs, which means they are self feeders.
The correct answer is option ''The stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs''.
In this case, the problem was that the physician's had a problem in listening the heart beats and the lung sound of the woman. To overcome this problem, the stethoscope was invented to listen the heart beat and the lung sound from distance, without keeping head on women's chest.
In your case, they're all animals that were used to make dishes.
Hope it helped,
Happy homework/ study/ exam!
Yes it can (I have to type 20 characters)
The answer is C. sooooooooooooooooooooooooooooooooooo i whve to take up space