The main difference between Darwin and Lamarck was that "<span>D. The idea of mutations was understood by both, but Darwin was able to prove it" although this is a lot like answer C...</span>
D.) Is the most sensible answer.
Explanation: I used the process of elimination to solve this. Groundwater recharge sounds too far off of the topic, snow melt is...well...melting snow, infiltration also has nothing to do with the subject, but surface runoff is the only one that makes sense, is on topic, and seems to have a meaning similar to the occurrences describes in your question.
This is possible because of the length of the protein. It is always possible to add more amino acids and synthesize new protein and every new addition increases the number of possibilities drastically.
Answer: A. Golgi Apparatus
Explanation: