I think the 4 major types of vectors are plasmids, viral vectors, cosmids, and artificial chromosomes. The most commonly used vectors are plasmids.
Hope this helps! ;0
The negative impact humans could have on an ocean ecosystem is pollution, which can lead to a mass extinction on the wildlife.
D) Methanogen is the awnser
Amino acids are the building block of protein !!!
Glacier because ice sheet and stuff and science ill explain more in the comments