Clearly, when 0 < | δ | ≪ 1, in a neighborhood of the origin, there exist one elementary node at the origin and two complex critical points of system (2.16) at ( x 1, y 1 ) and ( x 2, y 2 ), where x 1, 2 = − δ μ ± i + o , y 1, 2 = ± i δ 2 ( μ ± i ) 2 + o ( δ 2 ).
The lithological suggestions of the age of the deposits allowed to determine two types of depressions - fossil depressions of melting origin, and genetically complex ones that underwent deposition prior to the Eemian Interglacial and with a secondary deepening, most likely as a result of melting of ground ice under thermokarst conditions, during the Vistulian Glaciation (=Weichselian).
The adaptations and diversity of organisms, the origin of novel and complex species, even the origin of mankind, could now be explained by an orderly process of change governed by natural laws.
The polygenesis hypothesis refers to the polyphyletic origin (Polyphyly), or independent origins of neurons and complex brains among species in different clades.
Biologist Russell Gray uses evolutionary ideas to probe the origin of languages and complex thinking.
In contrast, other subunits might have different origins and show complex phylogenetic distributions [ 4].
The origination and evolution of embryonic development; The role of modifications of developmental processes in the production of novel features; How the adaptive plasticity of development facilitates the origin and maintenance of complex life cycles with embryos, larvae, and adults; and.
Finally, the functions enriched among genes regulated by acRPB1 suggest involvement in traits essential to the origin and development of complex animal multicellularity.
Moran [ 1] hypothesized that the genetic decoupling of pre- and post-metamorphosis life stages explains the origin and persistence of complex life cycles, as alternative phases can be regarded as adaptations for a more effective exploitation of resources and adaptations to perform phase-specific tasks.
