because there are too many cells up its fart
Sexual reproduction creates diversity, which in turn will increase the likelihood of survival for that population. By asexually reproducing, you eliminate these varieties and the population is more susceptible to death.
An advantage to reproducing through spores is that it can be done asexually. A disadvantage is that the spores will be clones of the original organism, leaving them vulnerable.
Geographical isolation is not a cause of speciation in an asexually reproducing organism because the population is self-pollinating and would be less prone to the factors which results from geographical isolation.
The offspring of an organism that reproduces asexually will be a genetic clone of the parent, carrying identical genetic material. This means that there is no genetic variation in the offspring, which can limit their ability to adapt to changing environments compared to sexually reproducing organisms.
mitosis in sexually reproducing organisms is used for growth into a multicellular organism from the initial zygote. mitosis is also used for repair in response to a wound, etc. mitosis is used in asexually reproducing organisms for reproduction.the whole process
It forms on the side of the organism.
An organism that reproduces sexually will have more genetic diversity than one that reproduces asexually.
Not by much
Sexual reproduction allows for twice the chance of an organisms offspring having a gene mutation, as the organisms DNA comes from two sources with differing genes. This increased chance means that the organism can evolve at a faster rate and therefore adapt more quickly, resulting in an advantage. The diversity in genetics of sexually reproducing organisms also reduces their susceptibility to mass infection / death. In addition, sexual reproduction is pleasurable in both humans and several primates, and this creates a stronger drive to reproduce.
One half of each parent's chromosomes, and genetic variation, as opposed to those that reproduce asexually - the cells just split, so each generation afterward is genetically identical to the parent.
Clones
Bacteria, yeast, sponges