Answer: You don't.
This sentence doesn't need a comma, since there is not an independent clause to separate it or an introductory clause or phrase. There is nothing listed, so you wouldn't need a comma.
Hence, the sentence is fine as it is.
<em>Let me down of any questions about my answer by commenting down below.</em>
The answer to your question would be the second option; "The pursuit of knowledge should include respect for moral boundaries".
I believe that the message the author is trying to convey in this excerpt is that humans need to take action to end further destruction of the natural environment, because if they don't, more and more species will disappear.
Answer:
Rereading helps you better understand the text and can possibly go through what you missed. While reading on can help you get more context and make connections on what you just read.
Edit your answer; include the answer choices wo we can choose the correct sentence
