most organisms reproduce sexually like all mammals, humans, and some invertabres
Most of the unicellular organisms reproduces asexually.
Internal fertilization .
Single celled organisms, bacteria and protozoa, reproduce by fission.
They don't HAVE to but if most don't, there will no more left.
Most disease causing organisms reproduce inside you and produce toxins.
the offspring is identical to one another
They don't HAVE to but if most don't, there will no more left.
Organisms in the phylum chordata reproduce sexually, with internal fertilization being common. In the phylum arthropoda, organisms reproduce through both sexual and asexual means, depending on the species. Organisms in the phylum mollusca reproduce sexually, with most species having separate sexes.
budding,reproduce,fission
because its more likely to survive
Most lower animals from Protozoa to Annelida show asexual reproduction .
Most unicellular organisms primarily reproduce through a process called binary fission, where a single cell divides into two identical daughter cells. This asexual reproduction method allows for rapid population growth, as the organism simply duplicates its genetic material and splits. Some unicellular organisms can also reproduce through budding or fragmentation, but binary fission remains the most common method.