These differences in both cases follow, to a certain extent, as might have been expected, systematic affinity, by which term every kind of resemblance and dissimilarity between organic beings is attempted to be expressed.
Kasu biotako ezberdintasunok, espero zitekeen moduan, neurri bateraino ahaidetasun sistematikoari dagozkionak dira, izaki organikoen arteko edozertariko antzekotasun edo antzekotasunik eza adierazi nahi duen esamoldea berau.