<span>the oldest form of biotechnology is : selective breeding
biotechnology included all kind of efforts that we use to obtain a desired genetic result from the reproduction of a certain organism.
In the early years of biotechnology, we still hasn't developed a way to do genetic manipulation, so we do selective breeding to obtain our desired result</span>
It is symbiosis, but also called a commensalism relationship because the remora is getting its food and the shark has no benefit.
Kingdoms are classified into three Domains and into one of the six kingdoms of life.
Parasitism, because it's hurting the shark, but not the eel