The receptor for smells are known as tastebuds which is answer D
I believe that the answer to this is the last two answers
The answer should be the "small intestine." 90% of digestion takes place in the small intestine and that's because that's during the process of digestion the small intestine sucks all of the nutrients out of the food then passes off the waste. Digestion starts as soon as you put food in your mouth because your saliva contains chemicals that breaks the food down.
Hope this helps!
The answer is D.
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