Answer: I don't have a definitive answer for this question but I do have a helpful explanation.
Explanation: Try to find out what each letter means and organize the elements by how they connect to each other. If you don't know you can research to find a diagram that can help show you how to connect these functional elements. You could try searching how do you find the elements of HOH in a diagram.
Overproduction of young passing on acquired traits survival of the strongest natural selection
Answer:
The esophagus is a long tube that connects the mouth to the stomach
The correct answer is -
E. double coincidence of wants
