The morphology is an example of convergent evolution.
Convergent evolution refers to the observation that unrelated species can evolve independently to present similar characteristics. The result is that species with different lineage evolve similar structures, forms, organs or in general adaptations. An example could be the fact that insects, bats and birds (even though not related) have similar structures in order to achieve flight.
The correct answer is urinary system
I hope that helped
I believe the answer is B, the survival of the fittest due to competition for resources. Survival of the fittest is a term that originated from Darwinian evolutionary theory was a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success. Many organism overproduce to increase chances of survival for their organisms due to competition.
Explanation:
Xenopus laevis is allotetraploid: it has 2 sets of homologous chromosomes originally from one species and 2 sets of homologous chromosomes originally from another species, making a total of 4 sets of chromosomes. During meiosis, every chromosome has another homologous one with which it can pair, producing viable gametes that have the complete genetic information of the species.
Mules, however, are allodiploid: they have one set of chromosomes from a donkey and another set from a horse, making a total of 2 sets of chromosmes. But those two sets are not homologous, so during meiosis the chromosomes can't pair and the gametes will have errors that make them inviable, making mules sterile
