Some organisms undergo asexual reproduction through mitosis, while others reproduce sexually, and their cells undergo meiosis to produce gametes. if there were drastic changes in temperature in an ecosystem, which process do you predict would be most beneficial to a species? mitosis: it causes genetic mutations, which may be favorable to the species. meiosis: it increases genetic variation, which ensure the species will survive. meiosis: it produces more daughter cells, which increases the population of the species. mitosis: it produces identical offspring, which increases genetic variation.