Some of the advantages of mitosis include rapid populating. Mitosis makes it possible for offspring to be reproduced in large quantities, filling up niches quickly, preventing competition and intruders from invading. Another advantage is that no mate is necessary to accomplish reproduction.
Mitosis eliminates the need to search for a mate, as it helps organisms reproduce independently. Mitosis does not require too much time or energy for offspring to be produced. The disadvantages of mitosis include a lack of diversity.
Since only one parent's traits are passed on to offspring, they are indistinguishable in every way, which causes a lack of diversity among the population. It is also difficult to adjust. Whatever organisms might have adapted to are the same stimuli that will get passed down to the offspring, and nothing is new or changed. It also elevates the risk of extinction. Having similar traits makes the weaknesses within the species the same.