Answer: The species would decrease in number and eventually die off.
If there is no fertilization in the sexually reproducing species for a longer period of time, then none of the female in the species would be able to give birth to the offspring, because the male and female gamete are not able to meet any more.
Therefore the no of species would ceased and then after some the species would extinct from the population or die off, As there are no any youth to replace the old people.
Organisms that can only grow in a media having specific nutrients included in it are called a fastidious organism, this implies that these organisms have specific nutrient requirements for their growth.
MM 1 represents the minimal media which has basic nutrients present in it, however as the fastidious organisms require some particular or complex nutrients for their growth they can not grow on the minimal media.
Therefore, since the organisms that are given in the question is able to grow on the minimal media MM1, this implies that it is not a fastidious organism.
