However, available time span during daytime is much shorter than that of nighttime due to interchange periods between cooling and heating cycles in the morning and in the evening.
Furthermore, the causal relationship between the generic phenytoin switching and decrease in serum level (and increase in seizure events) cannot be concluded, since it is unclear when the serum phenytoin levels were recorded, what daily dose was administrated and which generic drug was used in the pre- and post-interchange period in every patient.
These results indicate that grooming was traded for itself in the premating period (interchange) and for mating opportunities in the mating period (exchange).
A second period of interchange, dating to around 5 6.5 Mya, saw the arrival in Africa of Mus (leading to the speciose endemic Nannomys), and explains the appearance of several distinctive African lineages in the late Miocene and Pliocene fossil record of Eurasia.
Faunas and floras intermingle when continents are united (as when the Isthmus of Panama arose some 2.5 million years ago, allowing the "great American faunal interchange" to occur)—while periods of prolonged isolation lead to the evolution of distinct faunas: the marsupial evolutionary radiation in Australia being a prime example.
Our divergence time estimates would place this period of faunal interchange followed by regional differentiation in the interval 11 10 Mya – a very good fit with the fossil record of Africa and Asia.
By the late Early Miocene, Africa was no longer isolated from the rest of the Old World, and terrestrial connections to Eurasia provided long periods of faunal interchange between the land masses (Rögl 1998).
During their non-breeding period (August April), these birds interchange between localised movements (or resting) and long-distance movements (migration) (Bouten et al. 2013; Klaassen et al. 2012).
Following this assessment, if the player is cleared to return to play within the 15-min assessment period, the team is not penalized an interchange (i.e., the team receives a "free interchange").
Subsequently, in the second period, the removal methods were interchanged.
