Question 7
Animal KingdomThe structure labelled X is used by the organism in the same way as man uses his
- A.oesophagus
- B.trachea
- C.stomach
- D.intestine.
Show the answer and explanation
Answer: A (oesophagus)
Explanation
X is the oral groove leading to the gullet, which takes food into the cell, just as the oesophagus carries food in man.