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Propagule pressure plays an important role in species invasions (Groom, 2006). Charles Darwin was the first to study specific factors related to invasions of non-native species. In his research he identified that few members of the same genus were present in habitats containing naturalized non-indigenous species (Colautti et al., 2006).
Mutational robustness (also called mutation tolerance) describes the extent to which an organism's phenotype remains constant in spite of mutation. [9] Robustness can be empirically measured for several genomes [10] [11] and individual genes [12] by inducing mutations and measuring what proportion of mutants retain the same phenotype, function or fitness.
Students who complete two group 1 subjects (instead of a group 1 and group 2 subject), or complete a group 3 or 4 subject that is of a different language of the group 1 subject taken by the candidate, are eligible to be awarded a bilingual IB Diploma on the condition that the candidate obtains a level 3 or greater in both subjects. [2]
The pygmy mammoth is an example of insular dwarfism, a case of Foster's rule, its unusually small body size an adaptation to the limited resources of its island home.. A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms.
Schröder has averaged 18.4 points and 6.6 assists per game this season, his first full one with the Nets. They traded for him midway through last season with the Toronto Raptors.
Rates for a 15-year mortgage stand at an average 6.16% for purchase and 6.17 for refinance, down 1 basis point from 6.17% for purchase and 1 basis point from 6.18% for refinance this time last week.
The Ozark big-eared bat (Corynorhinus townsendii ingens) is an endangered species found only in a small number of caves in Arkansas, Oklahoma and Missouri, the southern central United States.
Syria's late President Hafez al-Assad waves from his car to cheering crowds in the streets of Damascus on the occasion of the 16th anniversary of the movement that brought him to power on November ...