Parasitism, because it's hurting the shark, but not the eel
The correct answer is - the release of methane from thawed permafrost.
In the past decade it has been noticed that the levels of methane are increasing in the atmosphere, and the biggest ''producer'' of this methane is the melting permafrost. There's huge amounts of methane trapped underground bellow the permafrost. But the permafrost is melting because of the global worming, so the methane is free to come out and go up in the atmosphere.
Answer:
what was the activity you did
Try using this website to answer your question
https://www.wiley.com/college/boyer/0470003790/structure/tRNA/trna_text.htm
