¿Cuál es la importancia de la fusión nuclear? What is the importance of nuclear fusion?

Without it, there are no stars, including our own sun, and there wouldn’t be us talking about it.

It is used in particularly destructive bombs.

At a tiny scale, it can be used to produce neutrons, eg, a Farnsworth Fusor.

At a large scale, we have yet to figure out how to make controlled fusion work in a way that runs for a long time and generates collectible power we can use to feed the process. This has remained elusively 20 years out from the current state of affairs for 50 years.

If it was made to work, then it would probably be a good source of clean energy that would be safer than many of the non-renewable alternatives.

I don’t expect to live to see it happen.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.