"Now we have six prayers every day (instead of the usual obligatory five) because of the funerals," Zaid says, adding that it has now become normal for a family to lose three or four members in the fighting.
The field unit element is obligatory because it is the root of the derivative hierarchy and appears, if not manually created, automatically once a specimen or any other sample is entered or imported.
Only key questions were obligatory because they were necessary for the flow of the questionnaire (eg, birthdate and sex), but all other questions were not obligatory: participants were made aware of the unanswered questions on submission, but they had the opportunity to leave them blank.
He suggested that the rest of the Ten Commandments, and any other commandments God makes, are morally obligatory because God commands them.
At times, Maritain appears to hold that natural law acquires its obligatory character only because of its relation to the eternal law; he writes that "natural law is law only because it is participation in Eternal Law" (see Man and the State, p. 96).
Leonerasaurus is positioned outside the clade of Melanorosaurus+Sauropoda (Figure 14), a group recently interpreted as the obligatory "quadrupedal clade" because of the modifications of their hindlimbs and forelimbs [14].
For Locke, then, moral law is, by definition, an obligatory set of rules, because it is reflects the will of a superior authority.
Because of the obligatory role of mosquito vectors in malaria transmission, reciprocal selection between malaria parasites and mosquito vectors can lead to local adaptation of the parasite [ 16].
Because of asymmetric and obligatory nature of mycorrhiza, some AMF associated with compatible host, and co-evolved to form present patterns, while others did not and went extinction.
